A Convenient Synthesis of Episulfides and Their Conversion into Alkenes
作者:Piotr Dybowski、Aleksandra Skowrońska
DOI:10.1055/s-1997-1329
日期:1997.10
A convenient and stereoselective synthesis of episulfides based on the reaction of readily available S-(β-oxoalkyl) thiophosphate with sodium borohydride and their conversion into alkenes is described.
A Convenient and Stereoselective Synthesis of Alk-2-enenitriles
作者:Piotr Dybowski、Aleksandra Skowrońska
DOI:10.1055/s-1997-1188
日期:1997.3
A convenient and stereoselective synthesis of alk-2-enenitriles based on the reaction of readily available S-(β-oxoalkyl)thiophosphates and Se-(β-oxoalkyl)selenophosphates with potassium cyanide in the presence of 18-crown-6 is described.
One-Step Ethynylation of Silyl Enol Ether with Chlorosilylethyne
作者:Mieko Arisawa、Ryo Amemiya、Masahiko Yamaguchi
DOI:10.1021/ol026050l
日期:2002.6.1
[reaction: see text] In the presence of GaCl(3), silyl enol ethers are ethynylated at the alpha-carbon atom with chlorotrimethylsilylethyne. This reaction can provide alpha-ethynylated aryl ketones possessing acidic alpha-protons without isomerization to conjugated allenyl ketones.