Chemical Communications 2014-06-25

Silylium ion-promoted dehydrogenative cyclization: synthesis of silicon-containing compounds derived from alkynes.

Hidekazu Arii, Takashi Kurihara, Kunio Mochida, Takayuki Kawashima

Index: Chem. Commun. (Camb.) , (2014)

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Abstract

Treatment of dialkylbenzylsilane (1) with trityl tetrakis(pentafluorophenyl)borate (TPFPB) in the presence of terminal or internal alkynes (3) and 2,6-di-tert-butyl-4-methylpyridine gave the corresponding 1,2-dihydro-2-silanaphthalene derivatives (4) in 34-82% yields.