Stannyl Radical-Mediated Cleavage of π-Deficient Heterocyclic Sulfones. Synthesis of α-Fluoro Esters
作者:Stanislaw F. Wnuk、Jeannette M. Rios、Jahanzeb Khan、Ya-Li Hsu
DOI:10.1021/jo000342n
日期:2000.6.1
1 h under these conditions. This represents a mild new methodology for removal of the synthetically useful sulfone moiety. Substitution of Bu(3)SnD for Bu(3)SnH gave access to alpha-deuterium-labeled esters. Treatment of the alpha-(pyrimidin-2-ylsulfonyl) enolates derived from several esters with Selectfluor gave high yields of the 2-fluoro-2-(pyrimidin-2-ylsulfonyl)alkanoates, which were smoothly
Nickel catalyzed reaction of iodofluoroacetates with alkenes as a facile route to α-fluoroesters
作者:Yong Wang、Zhen-Yu Yang、Donald J. Burton
DOI:10.1016/0040-4039(92)88160-7
日期:1992.4
Reaction of iodofluoroacetates with alkenes and zinc in the presence of nickel dichloride hexahydrate and pyridine in THF affords the corresponding α-fluoroesters in good yields.
在六水合二氯化镍和吡啶存在下,碘氟乙酸盐与烯烃和锌的反应以良好的产率得到相应的α-氟代酯。
Pyrimidine compounds
申请人:The Secretary of State for Defence in Her Britannic Majesty's a
公开号:US05986096A1
公开(公告)日:1999-11-16
5-Bromo-2-iodopyrimidine is used to synthesize a range of chemical compounds including liquid crystalline compounds.
5-溴-2-碘吡啶用于合成一系列化合物,包括液晶化合物。
Preparation of .alpha.-fluorocarboxylic acids and derivatives
作者:Suzanne T. Purrington、Daniel L. Woodard
DOI:10.1021/jo00297a090
日期:1990.5
Brandaenge, Svante; Dahlman, Olof; Oelund, Jonas, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1983, vol. 37, # 2, p. 141 - 146