ライフサイエンスコーパス: vinyl bromide

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1 Herein, we extend the reaction to aryl and vinyl bromides.

2 Vinyl bromide 1 does not react with t-BuLi in pure hepta

3 Vinyl bromide 1 reacts slowly with n-BuLi at room temper

4 he key step is a free radical cyclization of vinyl bromide 29 to afford 30.

5 reaction constituted a major route for both vinyl bromide (68%) and allyl bromide (53%).

6 pionate (72) and (S)-pantolactone (73), with vinyl bromide 71.

7 For formation of vinyl bromides, a catalyst system involving the use of c

8 eagents with aryl and heteroaryl halides and vinyl bromides, affording the cross-coupled products in

9 d -poor aromatic iodides and bromides (and a vinyl bromide) all undergo efficient Suzuki coupling.

10 ional (nonoxidative) Heck reaction between a vinyl bromide and an alkene.

11 rate that lithium-bromine exchange between a vinyl bromide and either t-BuLi or n-BuLi at temperature

12 tion of 1,2-disubstituted styrenes with aryl/vinyl bromides and (Bpin)2 is reported.

13 asymmetric reductive cross-coupling between vinyl bromides and benzyl chlorides has been developed.

14 es, interestingly, the known S-vinylation of vinyl bromides and chlorides is limited to 1-(2-bromovin

15 n the coupling reaction of challenging alkyl vinyl bromides and chlorides with thiols is rare.

16 selectively transformed into predominantly Z-vinyl bromides and E-vinyl iodides.

17 inyl iodide preparation, in the synthesis of vinyl bromides, and in the synthesis of gem-diiodides, g

18 n applied to a number of vinyl chlorides and vinyl bromides, and the transformations generally procee

19 mixtures was optimal for the synthesis of E-vinyl bromides, and the use of lithium bromide in aceton

20 optimized conditions, a variety of aryl and vinyl bromides are reductively coupled with alkyl bromid

21 use of aryl triflates, vinyl chlorides, and vinyl bromides as the electrophilic component.

22 esters readily couple with aryl iodides and vinyl bromides, as well as 2-iodothiophene, at room temp

23 er either set of conditions, a wide range of vinyl bromides could be formed.

24 f olefins, resulting in a Z-selective formal vinyl bromide cross-metathesis reaction.

25 -metal-free cross-coupling of azaallyls with vinyl bromide electrophiles and delivers allylic amines

26 alpha-vinylation of N-Boc pyrrolidine using vinyl bromides exemplified by the total synthesis of nat

27 ure, a convenient method to prepare E- and Z-vinyl bromides from TMS-protected alkynes utilizing radi

28 uted-1,1-diphenyl-2-azaallyl derivatives and vinyl bromides has been developed.

29 Similarly, if a vinyl bromide is exposed to sodium hypobromite (freshly

30 The Z-vinyl bromide is in turn derived from a ruthenium cataly

31 ns (80% aqueous ethanol at 25 degrees C) the vinyl bromides leading to 2 and 3 ionize much more slowl

32 The vinyl bromides may be synthesized in a two-step, one-pot

33 Utilization of ketone with a vinyl bromide moiety allows respective R- and S-alcohols

34 The process involves use of alpha-lithio vinyl bromide or vinyl carbamate species, for which appl

35 lecular amine alkylation afforded a bicyclic vinyl bromide that was converted into (+)-elaeokanine A

36 eactions with aryl halides and triflates and vinyl bromides to form the corresponding aldehyde produc

37 ep protocol involving the cyclization of a Z-vinyl bromide under Barbier type conditions to form a cy

38 eaction of aryl halides, aryl triflates, and vinyl bromides under synergistic nickel- and organic-dye

39 The electron-induced reaction of physisorbed vinyl bromide (ViBr) and allyl bromide (AllBr) on Cu(110

40 s, for the first time, efficient coupling of vinyl bromides with a variety of amines to produce imine

41 urans via Pd-catalyzed reactions of aryl and vinyl bromides with gamma-hydroxy terminal alkenes is de

42 dium-catalyzed coupling of aryl bromides and vinyl bromides with zinc enolates of amides is reported.

43 f (E)-5-bromo-5-decene (1), a representative vinyl bromide, with t-BuLi or n-BuLi at 0 degrees C and

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