Cyclization reactions metal-catalyzed

This article will deal with metal-catalyzed cyclization reactions, with reference to oxide and dual-function catalysts. Product cycles may contain five or six carbon atoms. The respective prefixes C5 and will point to the resulting structure (5). The term dehydrocyclization will be applied to reactions that end up with aromatic products the formation of saturated (cycloalkane) rings will henceforth be called cyclization. ... [Pg.274]

The presence of surface carbon is often governed by the concentration of hydrogen. Its effects may be indirect and are dealt with in recent reviews 8, 148). Four different approaches will be offered to interpret hydrogen effects in metal-catalyzed cyclization reactions. [Pg.323]

Yasuo Yamazaki and Tadashi Kawai Metal-Catalyzed Cyclization Reactions of Hydrocarbons Zoultan Paal... [Pg.515]

A novel approach to enantiopure spirocyclic (3-lactams has been developed by Alcaide et al. [106] using different intramolecular metal catalyzed cyclization reactions with monocyclic unsaturated alcohols 142 (Scheme 35). Ring-closing metathesis is one of the most powerful and reliable methods to construct a ring system. Transformation of alcohols in diolefin precursors followed by ring-closing... [Pg.76]

Michael Addition in Transition-metal Catalyzed Cyclization Reaction... [Pg.117]

Big Chemical Encyclopedia