ライフサイエンスコーパス: cyclopentadiene

1 assical Diels-Alder (DA) reactions (with 1,3-cyclopentadiene).

2 acid, acid chloride) with cyclohexadiene and cyclopentadiene.

3 e DA reaction between (E)-cinnamaldehyde and cyclopentadiene.

4 ects were determined for the dimerization of cyclopentadiene.

5 2-aryl-alpha,beta-unsaturated aldehydes with cyclopentadiene.

6 ydrogenation and a Diels-Alder reaction with cyclopentadiene.

7 cycloaddition of BTF with 1-isopropenyl-1,3-cyclopentadiene.

8 n of N-2-alkenoyl-1,3-oxazolidine-2-one with cyclopentadiene.

9 een synthesized from hexachlorobutadiene and cyclopentadiene.

10 nd as dienophiles (C=S) in the reaction with cyclopentadiene.

11 supported by olefin moieties of substituted cyclopentadienes.

12 rall reaction provides a useful synthesis of cyclopentadienes.

13 lity of [1,5] hydrogen shifts in substituted cyclopentadienes.

14 5-0.65 eV: the most reliable predictions are cyclopentadiene (-0.63 eV), indene (-0.49 eV), fluorene

15 pe effects for rearrangement of 5-methyl-1,3-cyclopentadiene (1) to 1-methyl-1,3-cyclopentadiene (2).

16 been trapped with MeOH to afford methyl 1,3-cyclopentadiene-1- and -2-carboxylates 15 and 16.

17 two unstable components, cyclopropene 10 and cyclopentadiene 11.

18 ls-Alder adducts with perfluoroalkylated 1,3-cyclopentadiene (1a,b) were synthesized and studied.

19 thyl-1,3-cyclopentadiene (1) to 1-methyl-1,3-cyclopentadiene (2).

20 ates the 1,5-hydrogen shift reactions of 1,3-cyclopentadiene (2a) and 5-methyl-1,3-cyclopentadiene (2

21 of 1,3-cyclopentadiene (2a) and 5-methyl-1,3-cyclopentadiene (2c).

22 a series of dienes--1,3-dimethoxybutadiene, cyclopentadiene, 3,6-dimethyltetrazine, and 3,6-bis(trif

23 sigmatropic shift reactions of 5-substituted cyclopentadienes, 3-substituted cyclopropenes, and 7-sub

24 els-Alder reaction between 5-(trimethylsilyl)cyclopentadiene (36) and 5-(2-azidoethyl)-2,3-dimethoxyb

25 al/mol) include: 1,2-cyclobutadiene, 65; 1,2-cyclopentadiene, 51; 1,2-cyclohexadiene, 32; 1,2-cyclohe

26 an the reported value (95 degrees C) for the cyclopentadiene adducts of C60.

27 ,beta-unstaturated N-acyloxazolidinones with cyclopentadiene affording the adducts in high yield and

28 hetero-Diels-Alder cycloadducts derived from cyclopentadiene affords exo-triazolines in excellent yie

29 The adiabatic electron affinities of cyclopentadiene and 10 associated benzannelated derivati

30 the readily available Diels-Alder adducts of cyclopentadiene and 2-allyl-p-benzoquinone, has been dev

31 cid catalysts in the Diels-Alder reaction of cyclopentadiene and acrylate imide is presented.

32 The radical anions of cyclopentadiene and all of its annulated derivatives hav

33 eld and 92% ee in the model reaction between cyclopentadiene and cinnamic aldehyde).

34 he potential cycloaddition reactions between cyclopentadiene and cycloheptatriene have been explored

35 ation of "late" stable oxidation products of cyclopentadiene and cyclopentene.

36 catalyzed Diels-Alder cycloadditions between cyclopentadiene and different aldehydes, affording resul

37 tion of PhSCF2SiMe3 to both maleic anhydride-cyclopentadiene and maleic anhydride-cyclohexadiene addu

38 s catalyzed the Diels-Alder cycloaddition of cyclopentadiene and methacrolein.

39 e to catalyze a Diels-Alder reaction between cyclopentadiene and methyl vinyl ketone to generate 2-ac

40 solution step from the Diels-Alder adduct of cyclopentadiene and p-benzoquinone, has been devised.

41 The tropone adds in [6 + 4] fashion to cyclopentadiene and photocyclizes to hexafluorobicyclo[3

42 exocyclic diene portion of 1-isopropenyl-1,3-cyclopentadiene and the contrasting preference of 2-acet

43 l electron-demand Diels-Alder reactions with cyclopentadiene and the inverse electron-demand Diels-Al

44 uadricyclane, 1,3,5,7-cyclooctatetraene, 1,3-cyclopentadiene, and 1,3,5-cycloheptatriene to afford th

45 exhibits stronger interaction energies than cyclopentadiene, but the high distortion energies requir

46 The Diels-Alder dimer of cyclopentadiene carboxylate, Thiele's acid has conformat

47 Cyclopentadiene (Cp) undergoes a Diels-Alder reaction wi

48 he reactions of bicyclic enone (BCE, 1) with cyclopentadiene (Cp, 2) and the five-membered heterocycl

49 phatic, allylic C-H bonds in cyclic olefins, cyclopentadiene (CpH), cyclopentene (c-C(5)H(8)) and 1,4

50 (6)H(3)-2,6-iPr(2))(2)] with a cyclic olefin-cyclopentadiene (CpH), cyclopentene, 1,4-cyclohexadiene

51 synthetic approach for asymmetric ring-fused cyclopentadienes (Cps) with a chiral carbon at the ring

52 Cyclopentadienes (CPs) with Raman and electrochemically

53 The Diels-Alder reactions of cyclopentadiene, cyclohexadiene, and cycloheptadiene wit

54 enzenium ion/benzene (C6H7(+)/C6H6), the 2,4-cyclopentadiene/cyclopentadienyl anion (C5H6/C5H5(-)), a

55 y of the five-membered ring; the nonaromatic cyclopentadiene derivative has the highest conductance,

56 bornadienes by Diels--Alder cycloaddition of cyclopentadiene derivatives with substituted benzyne int

57 The strategic advantage of 5-(trimethylsilyl)cyclopentadiene Diels-Alder adducts is demonstrated by s

58 s-Alder reactions of methyl vinyl ketone and cyclopentadiene employing the H-bonding catalysts.

59 from acylnitroso cycloaddition reactions of cyclopentadiene, followed by N-O reduction and efficient

60 fied P-nitroso phosphine oxide (18) with 1,3-cyclopentadiene forms the diastereomeric cycloadducts 16

61 r fullerenes in Diels-Alder reactions with a cyclopentadiene-functionalized resin.

62 three different cyclic five-membered rings: cyclopentadiene, furan, or thiophene.

63 The reactivities of butadiene, cyclopentadiene, furan, thiophene, pyrrole, and their 1-

64 od for the synthesis of functionalized novel cyclopentadiene-fused chromanone scaffolds.

65 alpha-ketophosphonates and nitroalkenes with cyclopentadiene have been explored by using density func

66 acrylates with N-Cbz-1,2-dihydropyridine and cyclopentadiene have been explored to investigate the fa

67 The hydrogen shifts in cyclopentadienes have a diatropic ring current indicatin

68 Reaction of 18 with 1,3-cyclopentadiene in the presence of a Lewis acid produces

69 tional benzene ring in the sequence fused to cyclopentadiene increases the electron affinity by 0.15-

70 lic unit within the porphyrin framework with cyclopentadiene, indene, azulene, cycloheptatriene, or b

71 nd, ultimately, vinyl- and ethyl-substituted cyclopentadiene-iron complexes, respectively.

72 The transition state geometry of cyclopentadiene is less distorted in the asynchronous re

73 1H-Benz[f]indene, a naphthalene-annulated cyclopentadiene, is predicted to have a zero-point energ

74 as found to be less reactive toward C60 than cyclopentadiene itself, possibly because of the electron

75 Newly predicted values include: 1,2-cyclopentadiene <1 kcal/mol and bicyclo[3.2.1]octa-2,3-d

76 oss of CO, to afford the exo-fluoroalkylated cyclopentadiene M(II) complexes MCp(eta(4)-C(5)H(5)R(F))

77 6 + 4] cycloaddition of tropone [6pi] to the cyclopentadiene moiety [4pi].

78 To unequivocally bind an electron, cyclopentadiene must have at least two conventionally fu

79 of these P-nitroso phosphine oxides and 1,3-cyclopentadiene occur through a transition state where t

80 ion of ozone into matrices containing either cyclopentadiene or cyclopentene have led to the first ob

81 ude instances of benzene ring contraction to cyclopentadiene or the formation of an unprecedented met

82 ates, whereas Diels-Alder cycloaddition with cyclopentadiene provides the corresponding exocyclic vin

83 rbasapphyrin in 38% yield, while a triformyl cyclopentadiene reacted with the tetrapyrrole to give a

84 s are controlled by functionalization of the cyclopentadiene rings on ferrocene with electron withdra

85 membered ring-fusion is across the C(2)-C(3) cyclopentadiene single bond, only a single benzene is ne

86 rization of the fulvene to 1-isopropenyl-1,3-cyclopentadiene that then reacts with BTF to give the al

87 For cyclopentadiene, the endo-ester adducts were favored reg

88 such as the Diels-Alder dimerization of 1,3-cyclopentadiene, the rate and solubility data directly r

89 atalysis of the Diels-Alder cycloaddition of cyclopentadiene to cinnamates arises from stacking inter

90 ) reacts as an N-O heterodienophile with 1,3-cyclopentadiene to give the diastereomeric cycloadducts

91 roduct, and mild diazo-transfer to a complex cyclopentadiene to introduce the diazo function.

92 ers from the benzenium ion to benzene and of cyclopentadiene to its conjugate base, reflecting the sm

93 The perfluoroalkylated cyclopentadiene was found to be less reactive toward C60

94 troso-derived proline analogues derived from cyclopentadiene were shown to exist exclusively as the E

95 alculations for the Diels-Alder reactions of cyclopentadiene with 1,4-naphthoquinone, methyl vinyl ke

96 sed as a model reaction the cycloaddition of cyclopentadiene with a self-assembled monolayer (SAM) pr

97 The concerted cycloaddition of cyclopentadiene with acrylonitrile is preferred computat

98 been used to study Diels-Alder reactions of cyclopentadiene with alpha,beta-unsaturated aldehydes an

99 re prepared by Diels-Alder cycloadditions of cyclopentadiene with dimethyl fumarate and dimethyl 1,1-

100 contrast to recent reports, the reaction of cyclopentadiene with diphenylketene affords both [4 + 2]

101 The cycloadditions of cyclopentadiene with diphenylketene and dichloroketene a

102 ilable through the cycloaddition of furan or cyclopentadiene with either tetrachloro- or tetrabromocy

103 se study of the Diels-Alder cycloaddition of cyclopentadiene with ethylene serves, in pedagogical det

104 dilute aqueous solution for the reaction of cyclopentadiene with methyl vinyl ketone.

105 -insertion reaction of a nitrile-substituted cyclopentadiene with the arachno-4,6-C2B7H12(-) anion, f