Polymer-Supported Dicyanoketene Acetal as a p p-Acid Catalyst: Monothioacetalization and Carbon

Chem. Pharm. Bull., 48(7), 1010-1016, July 2000

Regular Articles

Polymer-Supported Dicyanoketene Acetal as a p-Acid Catalyst: Monothioacetalization and Carbon-arbon Bond Formation of Acetals

Nobuyuki TANAKA, Tsuyoshi MIURA, and Yukio MASAKI^*

Gifu Pharmaceutical University, 5-6-1 Mitahora Higashi, Gifu 502-8585, Japan.
Received January 24, 2000; accepted March 15, 2000

Polymeric dicyanoketene acetals (DCKA) were synthesized by copolymerization of styrene and divinylbenzene or ethylene glycol dimethacrylate. These novel polymers could be used successfully as recyclable p-acid catalysts in monothioacetalization or carbon-arbon bond forming reaction of acetals.

Key words polymeric dicyanoketene acetal; p-acid; recyclable catalyst; monothioacetalization; carbon-arbon bond formation

Regular Articles

Polymer-Supported Dicyanoketene Acetal as a p-Acid Catalyst: Monothioacetalization and Carbon-arbon Bond Formation of Acetals

Nobuyuki TANAKA, Tsuyoshi MIURA, and Yukio MASAKI*

Gifu Pharmaceutical University, 5-6-1 Mitahora Higashi, Gifu 502-8585, Japan. Received January 24, 2000; accepted March 15, 2000

Nobuyuki TANAKA, Tsuyoshi MIURA, and Yukio MASAKI^*

Gifu Pharmaceutical University, 5-6-1 Mitahora Higashi, Gifu 502-8585, Japan.
Received January 24, 2000; accepted March 15, 2000