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The formation of carbon-carbon bonds is perhaps one of the most important reactions in organic chemistry. Currently, the most developed methods for forming sp2 carbon -carbon bonds involve transition-metal-catalyzed cross-coupling reactions between Ar -M(M) SnR 3, B(OR)2, MgX) and Ar-X(X=halogen, sulfonate). Quite often, these func-tionalized starting materials are either expensive or have to be prepared in several steps. Regioselective conversion of C-H to C-C bonds would result in shortening of synthetic schemes by allowing the use of readily available starting materials. [ Last edited by 张超峰 on 2012-4-29 at 12:58 ] |
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爱与雨下: 金币+1 2012-05-01 16:58:19
爱与雨下: , 欢迎常来~！ 2012-05-01 16:58:30
张超峰: 金币+8 2012-05-01 17:31:48
张超峰: 金币+2 2012-05-01 17:32:22
爱与雨下: 金币+1 2012-05-01 16:58:19
爱与雨下: , 欢迎常来~！ 2012-05-01 16:58:30
张超峰: 金币+8 2012-05-01 17:31:48
张超峰: 金币+2 2012-05-01 17:32:22
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The formation of carbon-carbon bonds is perhaps one of the most important reactions in organic chemistry. Currently, the most developed methods for forming sp2 carbon -carbon bonds involve transition-metal-catalyzed cross-coupling reactions between Ar -M(M) SnR 3, B(OR)2, MgX) and Ar-X(X=halogen, sulfonate). Quite often, these func-tionalized starting materials are either expensive or have to be prepared in several steps. Regioselective conversion of C-H to C-C bonds would result in shortening of synthetic schemes by allowing the use of readily available starting materials. 碳-碳键的形成可能是有机化学里面最重要的反应之一。目前，关于形成sp2碳-碳键的最新方法是经过渡金属催化，于Ar -M(M) SnR 3, B(OR)2, MgX) and Ar-X(X=halogen, sulfonate)之间发生交联反应而形成。这些功能化的起始物质通常价格昂贵抑或是前处理过程冗杂。所以选用快速易得的起始物质能完成从碳-氢键到碳-碳键的转化，从而使反应的路线得到缩减。 |
3楼2012-05-01 11:35:07