ライフサイエンスコーパス: alpha-pinene

1 o diastereomers of TpRe(CO)(MeIm)(eta(2)-(R)-alpha-pinene).

2 oratory study investigating the oxidation of alpha-pinene.

3 anic aerosol (SOA) produced by ozonolysis of alpha-pinene.

4 ite effects were observed in the case of (-)-alpha-pinene.

5 nhanced binding and rate of oxidation of (+)-alpha-pinene.

6 P450(cam) for the selective oxidation of (+)-alpha-pinene.

7 2)-benzene) has been developed utilizing (R)-alpha-pinene.

8 tion of the two) affected SOA formation from alpha-pinene.

9 lecules (HOMs) are produced by ozonolysis of alpha-pinene.

10 nic material (SOM) produced by ozonolysis of alpha-pinene.

11 om oxidation of ponderosa pine emissions and alpha-pinene.

12 epper odour, such as beta-pinene (34.0%) and alpha-pinene (10.3%).

13 ere 1.8 cineole (52.2%), camphor (15.2%) and alpha-pinene (12.4%).

14 tuted high levels of beta-pinene (47.1%) and alpha-pinene (21.3%).

15 Limonene, alpha-pinene, 3-carene, dihydromyrcenol, geraniol, linal

16 -ocimene (53.81%), R-D-decalactone (12.75%), alpha-pinene (6.43%), n-heptanol (6.27%), beta-phellande

17 one (2) has been developed starting from (S)-alpha-pinene (7), using photooxygenation, oxidation, and

18 , followed by asymmetric hydroboration using alpha-pinene/9-BBN reagents to form the stereoisomeric a

19 Further, by using the common terpene alpha-pinene, a single enantiomer of the tungsten fragme

20 rmed from oxidation of organic gases such as alpha-pinene account for a significant portion of total

21 and a total seven selected terpenes that are alpha-pinene, alpha-phellandrene, (+)-3-carene, sabinene

22 uantified were the monoterpenes beta-pinene, alpha-pinene, alpha-thujene, camphene, sabinene, delta-3

23 only mastic oil -which is comprised of 67.7% alpha-pinene and 18.8% myrcene- induced a statistically

24 as cylinders prepared with a mixture of just alpha-pinene and benzene as the internal standard.

25 . communis showed high contents of sabinene, alpha-pinene and beta-myrcene with 19-30%, 12-24% and 9-

26 adicals that are formed after OH addition to alpha-pinene and beta-pinene are investigated.

27 ys of the atmospherically important terpenes alpha-pinene and beta-pinene are studied using density f

28 na to a mixture of the bicyclic monoterpenes alpha-pinene and beta-pinene induced defense, accumulati

29 from the NO3 oxidation of two monoterpenes (alpha-pinene and beta-pinene) and investigate how they e

30 and a (-)-pinene synthase that produces both alpha-pinene and beta-pinene.

31 plored, targeting two medium-polar analytes, alpha-pinene and cis-verbenol in Boswellia sacra tree re

32 rganic compounds, including the monoterpenes alpha-pinene and limonene and the aromatic catechol (ben

33 These produce either the monoterpenes alpha-pinene and limonene, or the sesquiterpene 7-epizin

34 ics of SOA particles formed by ozonolysis of alpha-pinene and limonene.

35 This work examines these interactions using alpha-pinene and pellet boiler emissions as a model test

36 osols (SOA) resulting from the ozonolysis of alpha-pinene and photooxidation of toluene, redispersed

37 tion of secondary organic aerosol (SOA) from alpha-pinene and toluene photooxidation.

38 % enhancements in relative SOA yield for the alpha-pinene and toluene systems, respectively, when see

39 ered substrates such as 1-methylcyclohexene, alpha-pinene, and 2,3-dimethyl-2-butene.

40 mong the most abundant oxidation products of alpha-pinene, and dimethylamine were selected to study t

41 caryophyllene, the monoterpenes linalool and alpha-pinene, and the homoterpene (E)-4,8-dimethyl-1,3,7

42 enerated from two monoterpenes, limonene and alpha-pinene, and two different oxidants, ozone (O3) and

43 produces significant amounts of (+)- and (-)-alpha-pinene, (+)- and (-)-beta-pinene, myrcene and (+)-

44 atmospherically relevant organic coatings of alpha-pinene (AP) SOA on the reactive uptake of trans-be

45 f oil were alpha-Phellandrene, alpha-cymene, alpha-pinene, Apiol, 1,6-Cyclodecodiene, and 1-methyl-5-

46 xygenated derivatives of the monoterpene (+)-alpha-pinene are found in plant essential oils and used

47 bstituted (C10H16) and deuterated (C10H13D3) alpha-pinene are investigated using coupled ion mobility

48 SOA yields from OH oxidation of alpha-pinene are significantly higher than SOA yields fr

49 methodology has been evaluated here by using alpha-pinene as the precursor because it is the monoterp

50 e to study SOA formed from the ozonolysis of alpha-pinene at relative humidities (RHs) up to 87% at 2

51 and this was associated with the presence of alpha-pinene, beta-pinene, and camphene in the emissions

52 much higher concentrations of monoterpenes (alpha-pinene, beta-pinene, and camphene) than did S. ter

53 ae uses a mixture of (E)-beta-farnesene, (-)-alpha-pinene, beta-pinene, and limonene.

54 d production of SOA from limonene, isoprene, alpha-pinene, beta-pinene, and toluene by (3)IC* occurs

55 reactions of (3)IC* with limonene, isoprene, alpha-pinene, beta-pinene, and toluene, and an enhanceme

56 sis reactions of four biogenic monoterpenes (alpha-pinene, beta-pinene, D-limonene, Delta(3)-carene)

57 of five monoterpenes and one sesquiterpene (alpha-pinene, beta-pinene, Delta-3-carene, limonene, sab

58 enes such as (-)-limonene, (-)-linalool, (-)-alpha-pinene/beta-pinene or myrcene, in transgenic tobac

59 Some mutants had tighter (+)-alpha-pinene binding than camphor binding by the wild-ty

60 t studies of particles from the oxidation of alpha-pinene by ozone and NO(3) radicals at room tempera

61 ase also produces significant amounts of (+)-alpha-pinene, (+)-camphene, and (+/-)-limonene.

62 For the molecules studied, alpha-pinene, camphor, and borneol, the accuracy of foll

63 ate] and several terpene hydrocarbons [e.g., alpha-pinene, caryophyllene] were emitted.

64 We demonstrate that spin trap adducts with alpha-pinene CIs also form in the gas phase and that the

65 been used to generate spin trap adducts with alpha-pinene CIs in the gas phase.

66 the structure of the spin trap adducts with alpha-pinene CIs, the reaction was tested in solution, a

67 However, formation of the 2B6-(+)-alpha-pinene complex has a significant enthalpic compone

68 resentative borane reagents derived from (+)-alpha-pinene confirm that the overall stereoselectivity,

69 In addition, ozonolysis of alpha-pinene contributes substantially to the formation

70 inene decreased, while the mole fractions of alpha-pinene, d-limonene (R-(+)-limonene), p-cymene, and

71 4-9 monomers and C16-20H24-36O8-14 dimers in alpha-pinene derived secondary organic aerosol (SOA).

72 m and lambdaemission = 425 +/- 38 nm for the alpha-pinene-derived SOA.

73 er a P450(cam) mutant that could oxidize (+)-alpha-pinene directly to (+)-verbenone.

74 ), biomass burning (guaiacol), and biogenic (alpha-pinene) emissions.

75 (+)-Verbenone, (+)-myrtenol, and the (+)-alpha-pinene epoxides were among the minor products.

76 ine, or by the conventional hydroboration of alpha-pinene, followed by addition of DMAP.

77 The main components linalool, alpha-pinene, gamma-terpinene, p-cymene and limonene sho

78 We used a smog chamber to generate SOA from alpha-pinene, guaiacol, isoprene, tetradecane, and 1,3,5

79 Ozonolysis of alpha-pinene has been chosen as a proof-of-principle mod

80 ting that DMA might affect the ozonolysis of alpha-pinene in ambient conditions.

81 to better understand the atmospheric fate of alpha-pinene in future studies.

82 release characteristics of diacetyl and (-)-alpha-pinene in oil-in-water (o/w) emulsions prepared wi

83 In the present study, ozonolysis of alpha-pinene in the presence of dimethylamine (DMA) was

84 of SOA particles formed during ozonolysis of alpha-pinene in the presence of dioctyl phthalate (DOP)

85 The maximum SOA yield of alpha-pinene in the presence of pellet boiler exhaust (u

86 a biogenic precursor (beta-pinene, limonene, alpha-pinene) in a flow tube reactor.

87 The photooxidation products of a mixture of alpha-pinene (initial concentration 191 ppb), 1,3,5-trim

88 (+)-alpha-Pinene is a monoterpene hydrocarbon that is widely

89 (+)-alpha-Pinene is structurally related to (+)-camphor, the

90 posed mechanism of formation of acetone from alpha-pinene, is determined to possess a barrier of 11.6

91 -dihydronaphthalene; 1,2,4-trimethylbenzene; alpha-pinene; isopropyl 2-methylbutanoate; cymene; 2,6-d

92 The ability of methyl-isoeugenol, limonene, alpha-pinene, isovaleric acid, and isosafrole to inhibit

93 ion of the structures of (+)-camphor and (+)-alpha-pinene lead to active-site mutants containing comb

94 dant capacity of eugenol, carvacrol, thymol, alpha-pinene, limonene and linalool was determined.

95 ed the highest positive chemotaxis (70-80%), alpha-pinene, limonene and tridecane were intermediate (

96 each plant, five of which were identified as alpha-pinene, limonene, 2-methoxy-3-(1-methylpropyl)-pyr

97 of the aerosol produced, but in the case of alpha-pinene, little organonitrate and no aerosol is for

98 ignificant anti-tumor effect in mice but not alpha-pinene, myrcene or a combination thereof.

99 ectly test whether D62-squalane and SOA from alpha-pinene + O3 form a single solution or two separate

100 ents, one material (D62-squalane or SOA from alpha-pinene + O3) was prepared first to serve as surfac

101 ents of the influence of adding a coating of alpha-pinene+O3 SOA onto squalane particles on the OH-in

102 If the gem dimethyl groups of (+)-alpha-pinene occupied similar positions to those found f

103 rain first-generation SOA formation from the alpha-pinene + OH reaction and also study SOA formation

104 Both of the alkoxy radicals formed from the alpha-pinene-OH adduct possess a single favored C-C scis

105 The rearrangement of the alpha-pinene-OH adduct, a key step in the proposed mecha

106 lpha-pinene SOA compounds were produced from alpha-pinene oxidation experiments and used for quantita

107 s hindered by the structural rigidity of the alpha-pinene oxidation products.

108 e, we predicted and compared KS for selected alpha-pinene oxidation products.

109 active was the Y96F/V247L mutant, with a (+)-alpha-pinene oxidation rate of 270 nmol (nmol of P450(ca

110 tive tracer (13)N in flow-reactor studies of alpha-pinene oxidation with ozone.

111 these studies that the lack of reactivity of alpha-pinene oxide and exo-2,3-epoxynorbornane toward co

112 ) on relative SOA yield and composition from alpha-pinene ozonolysis and the photooxidation of toluen

113 equilibration time scales of SOA formed from alpha-pinene ozonolysis by measuring the dynamic respons

114 H reaction and also study SOA formation from alpha-pinene ozonolysis carried out without an OH scaven

115 ficients of a suite of oxidation products of alpha-pinene ozonolysis in an aerosol that is assumed to

116 e water-soluble component of SOM produced by alpha-pinene ozonolysis is quantified for 20- to 50-mum

117 anic peroxides, which are highly abundant in alpha-pinene ozonolysis SOA (22 +/- 5% by weight), have

118 stripping volatile compounds and ozone from alpha-pinene ozonolysis SOA with three 1-m-long denuders

119 ted for aerosol particles of adipic acid and alpha-pinene ozonolysis SOM.

120 lly fall within the range of mass yields for alpha-pinene ozonolysis under various conditions.

121 s that describe the partitioning of SOA from alpha-pinene ozonolysis using measurements from a dual-t

122 this end, aerosol chamber investigations of alpha-pinene ozonolysis were conducted under near enviro

123 SOA yields from alpha-pinene ozonolysis were measured in the presence of

124 osol (SOA), formed in a flow tube reactor by alpha-pinene ozonolysis, was studied by passing the fres

125 produced by isoprene photo-oxidation and by alpha-pinene ozonolysis.

126 w volatility organic compounds formed during alpha-pinene ozonolysis.

127 condary organic aerosol (SOA) formation from alpha-pinene photo-oxidation was studied under atmospher

128 Results from a time-resolved alpha-pinene photooxidation experiment show that the 2-h

129 those formed by condensation of the oxidized alpha-pinene products on size-selected DOP particles and

130 ggest that organic peroxy radicals formed by alpha-pinene reacting with secondary OH from ozonolysis

131 OA mass loadings are produced during the NO3+alpha-pinene reaction, during which only 5 highly oxygen

132 s and was proposed in previous studies as an alpha-pinene-related marker compound that is associated

133 1,8-cineole, limonene, myrcene, beta-pinene, alpha-pinene, sabinene and alpha-terpineol.

134 Emissions of delta-3-carene, alpha-pinene, sabinene, and beta-phellandrene were most

135 beta-Pinene and alpha-pinene showed excellent stability at over 6 months

136 noterpene isomers: D-limonene SOA (LSOA) and alpha-pinene SOA (PSOA).

137 evaporation kinetics of laboratory-generated alpha-pinene SOA and ambient atmospheric SOA.

138 Eleven individual alpha-pinene SOA compounds were produced from alpha-pine

139 of the particle-phase ON evaporates from the alpha-pinene SOA during photochemical aging, thus exhibi

140 With this protocol, alpha-pinene SOA is found to be more volatile than tolue

141 Experiments were carried out on alpha-pinene SOA particles generated, evaporated, and ag

142 emoved, it takes approximately 24 h for pure alpha-pinene SOA particles to evaporate 75% of their mas

143 and by condensation of DOP on size-selected alpha-pinene SOA particles.

144 We conclude that the alpha-pinene SOA shell creates no major diffusion limita

145 rylic acid epoxide (MAE)-derived SOA tracer, alpha-pinene SOA tracers, and a biomass burning tracer (

146 For each system we added alpha-pinene SOA-generated directly in the AOT chamber-t

147 needed for achieving carbon mass closure of alpha-pinene SOA.

148 For alpha-pinene SOM, ammonia exposure at low RH increased t

149 ions between ozonolysis reaction products of alpha-pinene, such as pinonaldehyde or pinonic acid, and

150 ncentration in emulsions aromatized with (-)-alpha-pinene than with diacetyl.

151 Whereas, in samples flavoured with (-)-alpha-pinene, the highest and lowest retention time-cour

152 lly among the different BVOCs, from zero for alpha-pinene to 38-65% for Delta-3-carene and 86% for be

153 and a crotyl borane reagent derived from (-)-alpha-pinene to set both stereocenters in a single step

154 Binding of (+)-alpha-pinene to the P450 active site was demonstrated by

155 The observed range of relative yields for alpha-pinene, toluene, and acetylene SOA on deliquesced

156 oxidation of VOCs, in particular the terpene alpha-pinene, under atmospherically relevant conditions

157 (+)-alpha-Pinene was bound in two orientations which were re

158 ysis of human P450 2B6 interactions with (+)-alpha-pinene was undertaken to elucidate the basis of th

159 of decreasing mole fraction was observed in alpha-pinene where growth of d-limonene, p-cymene, and c

160 by the pellet boiler reduced SOA yields from alpha-pinene, whereas the chemical properties of the pri

161 unds by selective enzymatic oxidation of (+)-alpha-pinene, which is readily available in large quanti

162 ilable, enantiomerically pure (1R)- and (1S)-alpha-pinene, which was functionalized and subsequently

163 ) can be obtained with >99% ee starting from alpha-pinene with 80-90% ee by hydroboration using DMAP.

164 vely, J. oxycedrus was strongly dominated by alpha-pinene with 85-92% in both needles and berries.

165 The direct reaction of alpha-pinene with NO3 was found to be less important for

166 stability, was observed for beta-pinene and alpha-pinene, with growth of d-limonene, p-cymene, and c