Aldehyde to Ketone Homologation Enabled by Improved Access to Thioalkyl Phosphonium Salts
作者:Meghan Fragis、Jackson L. Deobald、Srinivas Dharavath、Jeffrey Scott、Jakob Magolan
DOI:10.1021/acs.orglett.1c01189
日期:2021.6.18
to competing redox chemistry with sulfoxides. Here we circumvent this problem to achieve a formal phosphine Pummerer reaction that offers thioalkyl phosphonium salts that, in turn, give rise to diverse vinyl sulfides via Wittig olefinations. Thirty vinyl sulfides are thus prepared from (alkylthioalkyl)triphenyl phosphonium salts and aldehydes. The hydrolysis of these vinyl sulfides offers an efficient
The Synthesis of Naturally Occurring C<sub>6</sub>-C<sub>3</sub>and C<sub>6</sub>-C<sub>3</sub>-C<sub>6</sub>Substances by the Use of Low-Valent Nickel-Mediated Grignard Reactions
作者:Ernest Wenkert、João Battista Fernandes、Enrique L. Michelotti、Charles S. Swindell