[EN] PLATINUM METALLACYCLES COMPRISING N,P,OR AS RINGATOMS AND THEIR USE AS CATALYSTS IN 1,2-HYDROSILYLATION REACTIONS OF DIENES<br/>[FR] 1,2-HYDROSILYLATION DE DIÈNES
申请人:HARVARD COLLEGE
公开号:WO2014138113A3
公开(公告)日:2014-12-04
1,2-Selective Hydrosilylation of Conjugated Dienes
作者:Sarah E. Parker、Jonas Börgel、Tobias Ritter
DOI:10.1021/ja5008596
日期:2014.4.2
Selective 1,2-hydrosilylation of 1,3-dienes is a challenging problem in transition metal catalysis. Butadiene, specifically, would be a useful substrate because 3-butenylsilane products have promise as superior coupling reagents for hybrid organic/inorganic materials synthesis. We report the first selective 1,2-hydrosilylation of conjugated dienes including butadiene. Hydrosilylation proceeds through a Pt(II/IV) cycle, and selectivity is generated at a hexacoordinate Pt(IV) complex that favors eta(2)-diene coordination and prevents pi-allyl complex formation.
A Strategy for the Synthesis of Well-Defined Iron Catalysts and Application to Regioselective Diene Hydrosilylation
作者:Jessica Y. Wu、Benjamin N. Stanzl、Tobias Ritter
DOI:10.1021/ja106853y
日期:2010.9.29
the development of a well-defined Fe catalyst and its application to the regio- and stereoselective 1,4-hydrosilylation of 1,3-dienes. To the best of our knowledge, this is the first example of accessing a characterized low-valent Fe catalyst by controlled reductiveelimination from a readily accessible Fe precatalyst.
我们报告了明确定义的 Fe 催化剂的开发及其在 1,3-二烯的区域选择性和立体选择性 1,4-氢化硅烷化中的应用。据我们所知,这是第一个通过从易于获得的 Fe 预催化剂中受控还原消除来获得表征低价 Fe 催化剂的例子。