ライフサイエンスコーパス: acetylide

1 ased Lewis superacid and a nucleophilic gold acetylide.

2 simultaneous formation of the chiral copper acetylide.

3 aldehydes via a catalytically generated zinc acetylide.

4 condensation, and conjugate additions of Cu acetylides.

5 pitation of insoluble and unreactive group 2 acetylides.

6 eatment of 9-fluorenone (8) with the lithium acetylide 9 followed by acetic anhydride produced the pr

7 has been prepared using a diastereoselective acetylide addition and 6-endo selenoetherification as ke

8 enter and a highly diastereoselective cerium acetylide addition to a methyl ketone for introduction o

9 f propargylic alkoxides generated by lithium acetylide addition to alpha-haloketones.

10 tes undergo sequential protonation/copper(I) acetylide addition to provide the products.

11 lylic alcohol 81 (98% yield); intramolecular acetylide addition within the epoxy aldehyde 82, using M

12 structions include highly diastereoselective acetylide additions to the N-methyliminium ion derived f

13 ylide-pyridinium coupling, a stereoselective acetylide-aldehyde cyclization, and a newly developed an

14 Lithium halides, acetylides, alkoxides, and monoalkylamides form isostruc

15 variety of electron-rich species, including acetylides, allyl silanes, electron-rich aromatics, sily

16 The low natural abundance of triply labeled acetylide also makes it an ideal ion to probe GM(1) clus

17 ) 2:2 mixed tetramer with the excess lithium acetylide and a 1:3 (alkoxide-rich) mixed tetramer.

18 (eta5-C5Me4H)2ZrH]2(mu2,eta2,eta2-N2H2), the acetylide and alkyl zirconocene diazenido complexes are

19 ty can be exploited in the transformation of acetylide and diyne groups to a variety of substrates, o

20 A family of cobalt chloride, methyl, acetylide and hydride complexes bearing both intact and

21 kyne cycloaddition, which includes copper(I) acetylide and triazolide as the early and the late inter

22 A Kinugasa reaction between copper(I) acetylides and cyclic nitrones derived from chiral amino

23 protected by organometallic ligands, such as acetylides and hydrides, is an emerging area of nanoscie

24 ansannular contacts (laddering) with lithium acetylides and lithium monoalkylamides.

25 Additions of lithium acetylides and n-BuLi to N-alkyl ketimines mediated by B

26 diazoalkenes, generated in situ from lithium acetylides and N-sulfonyl azides.

27 fluorides and polyfluoroarenes with lithium acetylides and precatalyst Ni(COD)(2), which operates wi

28 uggest that fluorination proceeds via copper acetylides and that cationic species are involved.

29 onent reaction of fluoroalkyl azides, copper acetylides, and allyl halides underwent aluminum halide-

30 Addition of the acetylide anion of propargyl aldehyde diethyl acetal (23

31 This method involves cationic zirconium acetylides as both the activator of epoxides and nucleop

32 range of donor-bridge-acceptor Pt(II) trans-acetylide assemblies, for which infrared excitation of s

33 cence quenching properties of a platinum(II) acetylide-based conjugated polyelectrolyte, Pt-p, which

34 aphthalene-monoimide acceptor via a platinum-acetylide bridging unit.

35 I)/Pt(II) complexes containing hydride (-H), acetylide (-C identical withCH), and vinylene (-HC horiz

36 c titanocene, phosphine, and zinc dust, zinc acetylides can be generated from the corresponding iodoa

37 some fraction initially residing upon the Pt-acetylide chains.

38 tion of triplet excitons localized on the Pt-acetylide chains.

39 control through judicious design of a Pt(II)-acetylide charge-transfer donor-bridge-acceptor-bridge-d

40 steps via an unsaturated cationic ruthenium acetylide complex has been proposed.

41 atom, leading to the formation of a thorium acetylide complex, [Cp(3)Th(C=CC(Me)Ph(2))] (3), which c

42 th copper atom, giving rise to a pentacopper acetylide complex.

43 tivated carbon dioxide unit on a metal-sigma-acetylide complex.

44 n calorimetry revealed that monomeric copper acetylide complexes are not reactive toward organic azid

45 epresentative series of mono- and bimetallic acetylide complexes featuring 10- and 12-vertex carboran

46 of linear and cross-conjugated platinum(II) acetylide complexes that contain extended p-(phenylene v

47 Thermally stable uranium(VI)-methyl and -acetylide complexes: U(VI)OR[N(SiMe3)2]3 R = -CH3, -C id

48 Gold(I) bis(acetylide) complexes [PPN][AuR(2)] (1-3) where PPN = bis

49 nitrenes that rapidly insert into the copper acetylide Cu-C bond rather than undergoing an undesired

50 cation by H atom loss while the chloride and acetylide derivatives proved inert.

51 sation between truxenone (8) and the lithium acetylide derived from 0.9, 2.5, and 5.0 equiv of 1-ethy

52 f the diketone 5 with 2 equiv of the lithium acetylides derived from the diacetylenes 4 followed by p

53 cond route to 39 relies on a stereoselective acetylide dianion addition to a serine-based nitrone, th

54 formation of unprecedented tetracopper(I) mu-acetylide/diyne complexes that were characterized by NMR

55 , PPh3, Imd), iodo substitution with lithium acetylide ethylenediamine complex (LiAEDA, HMPA, -5 degr

56 phosphinegold(I)-complexed phosphinegold(I) acetylide, followed by a 1,5-hydrogen shift.

57 of an aromatic ynamine class is shifted from acetylide formation to the azide ligation/migratory inse

58 otopic catalytic system with catalytic Cu(I)-acetylide formed from Cu(0) by "in situ" oxidation.

59 ide dimethyl acetal and a range of magnesium acetylides gave the corresponding enyne-dioxinones as mi

60 iates available, the addition of the lithium acetylide generated from 2-bromoimidazole subunit 40 to

61 road range of nucleophiles including lithium acetylides, Grignard reagents, and aryllithiums with att

62 This complex, {[ECE]Ni acetylide --> CuBr} contains both nickel and copper, wit

63 l features, DFT calculations of the {[ECE]Ni acetylide --> CuBr} intermediates revealed an unusual E-

64 The lithium acetylide intermediate formed in this protocol can be fu

65 rate enhancement observed when coinage metal acetylide intermediates are involved in the cyclization

66 l halides could serve as a source of Br+ and acetylide ions in the same transformation.

67 SiH to give new thiolate L(tBu)FeSSiMe3 (4), acetylide L(tBu)FeCCSiMe3 (5), and hydride [L(Me)Fe(mu-H

68 DI moieties tethered to the metal center via acetylide linkages emanating from one of the PDI bay pos

69 increase) according to the following order: acetylide < vinyl approximately Me < Ph.

70 he C-H of phenylacetylene to yield the imide acetylide [{((Me(3)Si)(2)N)(2)U(THF)}(2)(mu-N)][((Me(3)S

71 ng substrate atoms evolve, featuring Ag- bis-acetylide motifs, high structural quality and a regular

72 d substitution of F by aryl, heteroaryl, and acetylide nucleophiles.

73 sation between benzophenones and the lithium acetylide of 1-(2-ethynylphenyl)-2-phenylethyne, with th

74 The series of platinum acetylide oligomers (PAOs) with the general structure tr

75 ithin a series of monodisperse platinum (Pt) acetylide oligomers is reported.

76 6-C17 bond through condensation of a lithium acetylide on a Weinreb amide, and we assembled the C1-C5

77 ctrolytes, is not important for the platinum acetylide phosphorescent conjugated polyelectrolyte.

78 in an electronically excited covalent trans-acetylide platinum(II) donor-bridge-acceptor system in s

79 The Pt-acetylide polymer is water soluble, and it exhibits phos

80 iClick reactions between Au(I) acetylides PPh(3)Au-C=CR, where R = nitrophenyl (PhNO(2)

81 Addition of lithium acetylides prepared from 1-pentyne, phenylacetylene, and

82 yori enantioselective reduction, a Yamaguchi acetylide-pyridinium coupling, a stereoselective acetyli

83 y accessible and shelf-stable 1-bismuth(III) acetylides react rapidly and regiospecifically with orga

84 additions become nonconcerted when copper(I) acetylides react with azides and nitrile oxides, providi

85 Dimeric lithium acetylide reacts via a monosolvated monomer-based transi

86 nto the resulting Ir-H bond, and (iii) vinyl-acetylide reductive elimination.

87 The oligomers consist of Pt-acetylide repeats, [PtL(2)-C identical withC-Ph-C identi

88 The Pt-acetylide segments are electro- and photoactive, and the

89 ies, whose formation is reminiscent of Cu(I)-acetylide species proposed to be of critical importance

90 inal alkynes lead to the generation of Mn(I)-acetylide species, whose formation is reminiscent of Cu(

91 rgoes an enantioselective attack by a copper acetylide, templated by (S,S,R(a))-UCD-Phim.

92 tion starts with the formation of a dicopper-acetylide that undergoes a stepwise cycloaddition with t

93 After addition of a metal acetylide, the resulting propargyl alcohols were convert

94 Addition of a silylated acetylide to 11 in diethyl ether/trimethylamine gave mai

95 Addition of fluoride or acetylide to the most stable cyclopropanone occurred che

96 has been extended to anionic C-nucleophiles (acetylides) to give chiral meta-substituted alkynocalix[

97 ogen bonding between hydroxyl groups and the acetylide units of adjacent molecules.

98 that contain simple, unsubstituted vinyl and acetylide units, respectively.

99 ion proved to be versatile, with the formed acetylides, unlike other metalloorganic derivatives, sho

100 s derived from lithium alkoxides and lithium acetylides were investigated as part of a program to dev

101 he catalytically active sigma,pi-bis(copper) acetylide, whereas non-nucleophilic ligands favor the la

102 The use of copper acetylides, which are easily prepared from terminal alky

103 lectronic properties in alkaline earth metal acetylides with high-resolution microwave spectra of 17

104 d by addition of terminal alkynes to furnish acetylide zirconocene diazenido complexes, [(eta5-C5Me4H