{"id":2131,"date":"2014-07-11T08:51:14","date_gmt":"2014-07-11T00:51:14","guid":{"rendered":"\/\/www.gsbet888.com\/?p=2131"},"modified":"2019-08-02T18:56:32","modified_gmt":"2019-08-02T10:56:32","slug":"%e4%ba%9a%e7%a0%9c%e6%b0%a7%e5%8c%96%e7%a1%92%e7%9a%84syn-%ce%b2%e6%b6%88%e9%99%a4-syn-%ce%b2-elimination-of-sulfoxideselenoxide","status":"publish","type":"post","link":"\/\/www.gsbet888.com\/reactions\/%e6%b6%88%e9%99%a4%e5%8f%8d%e5%ba%94\/2014\/07\/%e4%ba%9a%e7%a0%9c%e6%b0%a7%e5%8c%96%e7%a1%92%e7%9a%84syn-%ce%b2%e6%b6%88%e9%99%a4-syn-%ce%b2-elimination-of-sulfoxideselenoxide.html","title":{"rendered":"\u4e9a\u781c\/\u6c27\u5316\u7852\u7684syn-\u03b2\u6d88\u9664 Syn-\u03b2-elimination of Sulfoxide\/Selenoxide"},"content":{"rendered":"
\u5bf9\u4e8e\u62e5\u6709\u03b2-H\u7684\u4e9a\u781c\u6216\u8005\u6c27\u5316\u7852\u5e95\u7269\u8fdb\u884c\u52a0\u70ed\u7684\u8bdd\uff0c\u4f1a\u5f15\u8d77syn<\/em><\/span>\uff0d\u03b2\u6d88\u9664<\/span><\/strong>\u53cd\u5e94\uff0c\u6700\u7ec8\u5f62\u6210\u70ef\u70c3\u4ea7\u7269\u3002<\/p>\n \u4e9a\u781c\u5e95\u7269\u867d\u7136\u6bd4\u8f83\u5bb9\u6613\u83b7\u5f97\uff0c\u4f46\u662f\u5982\u679c\u8981\u8fdb\u884c\u8be5\u53cd\u5e94\u7684\u8bdd\uff0c\u9ad8\u6e29(>80\u2103)\u662f\u5fc5\u987b\u7684\u3002\u800c\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u662f\u6c27\u5316\u7852\u5316\u5408\u7269\u7684\u8bdd\uff0c\u57280\uff5e25\u2103\u5c31\u884c\u8fdb\u884c\u6d88\u9664\u53cd\u5e94\u3002\u7c7b\u4f3c\u7684\uff0c\u6c27\u5316\u80fa\u7684\u8be5\u7c7b\u6d88\u9664\u53cd\u5e94\u88ab\u79f0\u4e3aCope\u6d88\u9664<\/span><\/a>\u3002<\/p>\n \u9187\u7c7b\u5e95\u7269\u5148\u5f62\u6210\u6c27\u5316\u7852\u4e2d\u95f4\u4f53\uff0c\u518d\u6d88\u9664\u5f62\u6210\u70ef\u70c3\u7684\u897f\u6ca2\u30fbGrieco\u6cd5<\/strong><\/span>\uff0c\u53ef\u4ee5\u5728\u6781\u5176\u6e29\u548c\u7684\u6761\u4ef6\u4e0b\u8fdb\u884c\uff0c\u6240\u4ee5\u8be5\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5408\u6210\u66f4\u590d\u6742\u7684\u6240\u9700\u5316\u5408\u7269\u3002\u4f46\u662f\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8be5\u65b9\u6cd5\u4e2d\uff0c\u5fc5\u987b\u4f7f\u7528\u8fc7\u91cf\u7684\u7852\u5316\u5408\u7269\u3002<\/p>\n <\/p>\n \u30fbClive, D. L. Tetrahedron<\/em> 1978<\/span><\/strong>, 34<\/em>, 1049. doi:10.1016\/0040-4020(78)80135-5<\/span><\/a> <\/p>\n Grieco\u6cd5\u7684\u673a\u7406\uff1a<\/p>\n <\/p>\n \u03b1–<\/span>\u7fb0\u57fa\u5316\u5408\u7269\u53ef\u4ee5\u7531\u70ef\u9187\u8ddfPhSeBr\u7b49\u53cd\u5e94\u83b7\u5f97\u3002\u8fd9\u662f\u5408\u6210\u03b1,\u03b2-\u4e0d\u9971\u548c\u7fb0\u57fa\u5316\u5408\u7269\u7684\u4e00\u822c\u65b9\u6cd5\u3002[1]\n \u6c27\u5316\u7852\u57fa\u56e2\u5728\u70ef\u4e19\u57fa\u4f4d\u7684\u60c5\u51b5\u4e0b\u3001\u76f8\u6bd4\u4e8e\u6d88\u9664\u53cd\u5e94\uff0c\u7c7b\u4f3c\u4e8eMislow-Evans\u91cd\u6392<\/span><\/a>[2,3]\u03c3\u91cd\u6392\u53cd\u5e94\u4f18\u5148\u53d1\u751f\u3002\u7531\u4e8e\u91cd\u6392\u540e\u7684O-Se\u952e\u5bb9\u6613\u65ad\u94fe\uff0c\u6240\u4ee5\u53ef\u4ee5\u7528\u6765\u5408\u6210\u70ef\u4e19\u9187\u5316\u5408\u7269\u3002[2] Gelsemine\u7684\u5408\u6210 [3]\n Merrilactone A\u7684\u5408\u6210 [4]\n <\/p>\n <\/p>\n<\/a><\/p>\n
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\n\u30fbNishizawa-Grieco Method: Grieco, P. A.; Gilman,\u00a0S.; Nishizawa, M. J. Org. Chem.<\/em> 1976<\/span><\/strong>, 41<\/em>, 1485. DOI: 10.1021\/jo00870a052<\/span><\/a><\/p>\n\n
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\n[2] Vedejs, E.: Duncan, S. M. J. Org. Chem.<\/em> 2000<\/span><\/strong>, 65<\/em>, 6073. DOI: 10.1021\/jo000533q<\/span><\/a>
\n[3] Yokoshima, S.; Tokuyama, H.; Fukuyama, T. Angew. Chem. Int. Ed.<\/em> 2000<\/span><\/strong>, 39<\/em>, 4073. [abstract]<\/span><\/a>
\n[4] (a) Birman, V. B.; Danishefsky, S. J. J. Am. Chem. Soc.<\/em> 2002<\/span><\/strong>, 124<\/em>, 2080.DOI: 10.1021\/ja012495d<\/span><\/a> (b) Meng, Z.; Danishefsky, S. J. Angew. Chem. Int. Ed.<\/em> 2005<\/span><\/strong>, 44<\/em>, 1511. DOI: 10.1002\/anie.200462509<\/span><\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"\u6982\u8981 \u5bf9\u4e8e\u62e5\u6709\u03b2-H\u7684\u4e9a\u781c\u6216\u8005\u6c27\u5316\u7852\u5e95\u7269\u8fdb\u884c\u52a0\u70ed\u7684\u8bdd\uff0c\u4f1a\u5f15\u8d77syn\uff0d\u03b2\u6d88\u9664\u53cd\u5e94\uff0c\u6700\u7ec8\u5f62\u6210\u70ef\u70c3\u4ea7\u7269\u3002 \u4e9a\u781c\u5e95\u7269\u867d\u7136\u6bd4\u8f83\u5bb9\u6613\u83b7\u5f97\uff0c\u4f46\u662f\u5982\u679c\u8981\u8fdb\u884c\u8be5\u53cd\u5e94\u7684\u8bdd\uff0c\u9ad8\u6e29(>80\u2103)\u662f\u5fc5\u987b\u7684\u3002\u800c\u53e6\u4e00\u65b9\u9762\uff0c\u5982\u679c\u662f\u6c27\u5316\u7852\u5316\u5408\u7269\u7684\u8bdd\uff0c\u57280\uff5e25\u2103\u5c31\u884c\u8fdb\u884c\u6d88\u9664\u53cd\u5e94\u3002\u7c7b\u4f3c\u7684\uff0c\u6c27\u5316\u80fa\u7684\u8be5\u7c7b\u6d88\u9664\u53cd\u5e94\u88ab\u79f0\u4e3aCope\u6d88\u9664\u3002 \u9187\u7c7b\u5e95\u7269\u5148\u5f62\u6210\u6c27\u5316\u7852\u4e2d\u95f4\u4f53\uff0c\u518d\u6d88\u9664\u5f62\u6210\u70ef\u70c3\u7684\u897f\u6ca2\u30fbGrieco\u6cd5\uff0c\u53ef\u4ee5\u5728\u6781\u5176\u6e29\u548c\u7684\u6761\u4ef6\u4e0b\u8fdb\u884c\uff0c\u6240\u4ee5\u8be5\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5408\u6210\u66f4\u590d\u6742\u7684\u6240\u9700\u5316\u5408\u7269\u3002\u4f46\u662f\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5728\u8be5\u65b9\u6cd5\u4e2d\uff0c\u5fc5\u987b\u4f7f\u7528\u8fc7\u91cf\u7684\u7852\u5316\u5408\u7269\u3002 \u57fa\u672c\u6587\u732e \u30fbClive, D. L. Tetrahedron 1978, 34, 1049. doi:10.1016\/0040-4020(78)80135-5 \u30fbNishizawa-Grieco Method: Grieco, P. A.; Gilman,\u00a0S.; Nishizawa, M. J. Org. Chem. 1976, 41, 1485. DOI: 10.1021\/jo00870a052 \u53cd\u5e94\u673a\u7406 Grieco\u6cd5\u7684\u673a\u7406\uff1a \u53cd\u5e94\u5b9e\u4f8b \u03b1–\u7fb0\u57fa\u5316\u5408\u7269\u53ef\u4ee5\u7531\u70ef\u9187\u8ddfPhSeBr\u7b49\u53cd\u5e94\u83b7\u5f97\u3002\u8fd9\u662f\u5408\u6210\u03b1,\u03b2-\u4e0d\u9971\u548c\u7fb0\u57fa\u5316\u5408\u7269\u7684\u4e00\u822c\u65b9\u6cd5\u3002[1] \u6c27\u5316\u7852\u57fa\u56e2\u5728\u70ef\u4e19\u57fa\u4f4d\u7684\u60c5\u51b5\u4e0b\u3001\u76f8\u6bd4\u4e8e\u6d88\u9664\u53cd\u5e94\uff0c\u7c7b\u4f3c\u4e8eMislow-Evans\u91cd\u6392[2,3]\u03c3\u91cd\u6392\u53cd\u5e94\u4f18\u5148\u53d1\u751f\u3002\u7531\u4e8e\u91cd\u6392\u540e\u7684O-Se\u952e\u5bb9\u6613\u65ad\u94fe\uff0c\u6240\u4ee5\u53ef\u4ee5\u7528\u6765\u5408\u6210\u70ef\u4e19\u9187\u5316\u5408\u7269\u3002[2] Gelsemine\u7684\u5408\u6210 [3] Merrilactone A\u7684\u5408\u6210 [4] \u5b9e\u9a8c\u6b65\u9aa4 \u5b9e\u9a8c\u6280\u5de7 \u53c2\u8003\u6587\u732e [1] Renga, J. M. Org. Synth. 1988, 6, 23. [2] Vedejs, E.: Duncan, S. M. J. Org. Chem. 2000, 65, 6073. DOI: 10.1021\/jo000533q [3] Yokoshima, S.; Tokuyama, H.; Fukuyama, T. Angew. Chem. Int. Ed. 2000, 39, 4073. [abstract] [4] (a) Birman, V. B.; Danishefsky, S. J. J. Am. Chem. Soc. 2002, 124, 2080.DOI: 10.1021\/ja012495d (b) Meng, Z.; Danishefsky, S. J. Angew. Chem. Int. 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