159598-02-4Relevant articles and documents
Dicyanoketene Acetals, a Novel Type of ?-Acid Catalyst for Monothioacetalization of Acetals
Miura, Tsuyoshi,Masaki, Yukio
, p. 7961 - 7964 (1994)
Dicyanoketene acetals such as dicyanoketene dimethyl acetal and ethylene acetal are introduced to be a novel type of ?-acid catalyst for the monothioacetalization of acetals.Particularly, the catalytic activity of dicyanoketene ethylene acetal was found to be superior to that of tetracyanoethylene and chemoselective in the crossover reaction of the monothioacetalization of a ketone-, an aldehyde-acetal and an alcohol THP-ether providing a ketone monothioacetal favorably.
Unprecedented polymer-supported π-acid: Synthesis and its application as a promoter to the monothioacetalization of acetals
Masaki, Yukio,Tanaka, Nobuyuki,Miura, Tsuyoshi
, p. 5799 - 5802 (2007/10/03)
A novel polymer was synthesized by copolymerization of styrene monomer bearing dicyanoketene acetal functionality and ethylene glycol dimethacrylate, and used successfully as a recyclable π-acid catalyst in monothioacetalization of aromatic, aliphatic, acyclic, and cyclic acetals with thiophenol and phenylthiotrimethylsilane.