{"id":5525,"date":"2015-06-29T18:12:45","date_gmt":"2015-06-29T10:12:45","guid":{"rendered":"\/\/www.gsbet888.com\/?p=5525"},"modified":"2019-08-02T18:55:24","modified_gmt":"2019-08-02T10:55:24","slug":"demayo%e5%8f%8d%e5%ba%94de-mayo-reaction","status":"publish","type":"post","link":"\/\/www.gsbet888.com\/reactions\/2015\/06\/demayo%e5%8f%8d%e5%ba%94de-mayo-reaction.html","title":{"rendered":"deMayo\u53cd\u5e94(de Mayo Reaction)"},"content":{"rendered":"
1,3-\u4e8c\u7fb0\u57fa\u5316\u5408\u7269\u4e0e\u70ef\u70c3\u5728\u5149\u50ac\u5316\u6761\u4ef6\u4e0b\uff0c\u73af\u5316\u52a0\u6210\u540e\u518d\u5f00\u73af\u5f97\u52301,5-\u4e8c\u7fb0\u57fa\u4ea7\u7269\u7684\u624b\u6cd5\u3002<\/p>\n
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<photochemical reaction in total synthesis><\/p>\n
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<\/p>\n Ingenol\u7684\u5408\u6210[1]\n <\/p>\n \u82ef\u7094\u4f5c\u4e3a\u5e95\u7269\u7684\u53cd\u5e94\u5b9e\u4f8b[2]\n <\/p>\n \u5728\u88c5\u5907\u6709\u51b7\u51dd\u7ba1\u30fb\u6e29\u5ea6\u8ba1\u30fb\u6405\u62cc\u5b50\u7684\u5e72\u71e5\u7684500mL\u4e09\u9888\u5706\u5e95\u70e7\u74f6\u4e2d\uff0c\u6c2e\u6c14\u4fdd\u62a4\u4e0b\u52a0\u5165CsF (19.7 g, 130 mmol, 2.5 equiv)\uff0c\u4e00\u8fb9\u6405\u62cc\u4e00\u8fb9\u7528\u6ce8\u5c04\u5668\u52a0\u5165\u4e59\u9170\u4e59\u9178\u7532\u916f(5.60 mL, 6.01 g, 51.8 mmol, 1.00 equiv)\u4e0e2-(trimethylsilyl)phenyl trifluoromethanesulfonate (15.7 mL, 19.3 g, 64.7mmol, 1.25 equiv)\u3002\u6cb9\u6d74\u52a0\u70ed\u56de\u6d4140\u5206\u949f\uff0c\u968f\u7740\u52a0\u70ed\u7684\u8fdb\u884c\u6eb6\u6db2\u4ece\u6d51\u6d4a\u6db2\u53d8\u6210\u9ec4\u8272\u3001\u6a59\u8272\u6700\u540e\u518d\u53d8\u6210\u9ec4\u8272\u6eb6\u6db2\u3002\u51b7\u5374\u5230\u5ba4\u6e29\u540e\uff0c\u6eb6\u6db2\u7528\u9971\u548c\u98df\u76d0\u6c34\uff08200mL\uff09\u7a00\u91ca\uff0c\u6c34\u5c42\u7528\u4e59\u919a\uff083\u00d7200mL\uff09\u8403\u53d6\uff0c\u5408\u5e76\u6709\u673a\u76f8\u5e76\u7528\u65e0\u6c34\u786b\u9178\u94a0\u5e72\u71e5\u3002\u8fc7\u6ee4\u540e\uff0c\u6d53\u7f29\u65cb\u5e72\u5f97\u5230\u6a59\u8272\u6cb9\u72b6\u7269\u8d28\u3002\u6700\u540e\u8fc7\u67f1\u5b50\u7eaf\u5316\u540e\uff0c\u51cf\u538b\u84b8\u998f\uff08124-130\u2103, 0.75 mmHg\uff09\u5f97\u5230\u767d\u8272\u6676\u4f53\u4ea7\u7269\uff086.63 g, 67%\uff09\u3002<\/p>\n <\/p><\/blockquote>\n <\/p>\n <\/p>\n<\/a><\/p>\n
\u53cd\u5e94\u5b9e\u4f8b<\/h4>\n
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\u5b9f\u9a13\u624b\u9806<\/h4>\n
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\u5b9e\u9a8c\u6280\u5de7<\/h4>\n
\u53c2\u8003\u6587\u732e<\/h4>\n[1] Winkler, J. D.; Rouse, M. B.; Greaney, M. F.; Harrison, S. J.; Jeon, Y. T. J. Am. Chem. Soc.<\/em> 2002<\/strong>, 124<\/em>, 9726. doi:10.1021\/ja026600a<\/a>
\n[4] Ebner, D. C.; Tambar, U. K.; Stoltz. B. M. Org. Synth.<\/em> 2009<\/strong>, 86<\/em>, 161. [website]<\/a><\/p>\n