A Flexible, Convergent Approach to Polycyclic Indole Structures: Formal Synthesis of (±)-Mersicarpine
作者:Aurélien Biechy、Samir Z. Zard
DOI:10.1021/ol900996k
日期:2009.7.2
The formal synthesis of (±)-mersicarpine was achieved using an intermolecularradical addition−radical cyclization cascade. This key reaction represents a flexible, convergent route to numerous polycyclic indole derivatives.
POLAR GROUP-CONTAINING COPOLYMER, RUBBER COMPOSITION AND STUDLESS TIRE
申请人:Sumitomo Rubber Industries, Ltd.
公开号:EP2404944A1
公开(公告)日:2012-01-11
The present invention provides a polar group-containing copolymer which can provide a rubber composition and a winter tire achieving the abrasion resistance, performance on ice, and handling stability on dry roads in a balanced manner. The present invention relates to a polar group-containing copolymer obtainable by copolymerizing a conjugated diene compound and a polar group-containing vinyl compound, wherein the polar group-containing vinyl compound is a compound that has a polymerizable unsaturated bond and a polar group, wherein any one of carbon atoms forming the polymerizable unsaturated bond and a carbon atom linked to the polar group are connected to each other via at least one carbon atom, and wherein a cis content of the double bond portion of the conjugated diene compound in the polar group-containing copolymer is 80 mol% or more.