Acyclic hydrocarbon with one triple bond between carbon atoms.
1
A variety of substituted alkynes participated in various modes of cycloaddition under Pd-Au alloy catalysis.
2
We herein report the first example of an electrochemical approach in promoting gold-catalyzed oxidative coupling of terminal alkynes.
3
Terminal alkynes will react selectively over internal alkynes in all cases examined including both aryl and alkenyl complexes.
4
Internal and terminal alkynes react with phosphanylalumanes, i. e., P-Al single-bond species, through heating but without any additional additives.
5
Substituted alkynes are more difficult to insert compared with acetylene, because of the steric repulsion from the additional substituents.
6
The reaction with two different ferrocene alkynes resulted in the corresponding ferrocene-labeled derivatives, which were obtained in good yield and purity.
7
The catalysts were tested for the oxidative homocoupling of 1-alkynes to the corresponding diynes in in a combined high throughput and conventional batch reaction approach.
8
Molecules 30 and 33 are synthesized from 1,3,5-triethynyladamantane by a series of Sonogashira coupling reactions involving terminal alkynes and aryl iodides.
9
However, in 7 and 8 one or two alkynes are inserted into one of the Co-S bonds to generate 18e species, respectively.
10
A possible mechanism for the very selective double C-H activation-alkyne coupling is discussed.
11
The individual azide and alkyne oligonucleotides were synthesized by standard phosphoramidite methods and assembled using a straightforward ligation procedure.
12
A flexible assembly strategy has been developed for the synthesis of Leishmania donovani GPI anchors that bear a clickable alkyne tag.
13
An azide was incorporated because this functional group is virtually absent in biological systems and can be reacted by strain-promoted alkyne-azide cycloaddition.
14
The protocols provided here were formulated for ProSeAM as a profiling reagent but can be applied to other terminal-alkyne-containing SAM analog cofactors.
15
A variety of substituted alkynes participated in various modes of cycloaddition under Pd-Au alloy catalysis.
16
We herein report the first example of an electrochemical approach in promoting gold-catalyzed oxidative coupling of terminal alkynes.
каталонский