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mas050518
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3Â¥2011-10-03 20:16:50
xiaokaizi
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2Â¥2011-10-03 19:55:21
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mas050518(½ð±Ò+5, ·ÒëEPI+1): Íò·Ö¸Ðл!!! 2011-10-03 22:05:12
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Importantly, reactions with electron-poor a,b-unsaturated aldehydes required a change of solvent to dichloromethane to avoid a competing hetero-[4+2] cycloaddition of these aldehydes with ethyl vinyl ether. ÖØÒªµÄÊÇ£¬Óëµç×ÓÔÆÃܶȵͣ¨Æ¶µç×Ó£©µÄ¦Á,¦Â-²»±¥ºÍÈ©µÄ·´Ó¦ÐèÒª½«ÈܼÁ»»³ÉDCMÒÔ±ÜÃâÕâЩȩÓëÒÒÏ©»ùÒÒÃѾºÕùÐԵط¢ÉúÔÓ[4+2]»·»¯·´Ó¦£¡ [ Last edited by °®ÓëÓêÏ on 2011-10-3 at 21:18 ] |

4Â¥2011-10-03 21:17:16
xiaokaizi
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5Â¥2011-10-03 21:53:33













Importantly, reactions with electron-poor a,b-unsaturated aldehydes required a change of solvent to dichloromethane to avoid a competing hetero-[4+2] cycloaddition of these aldehydes with ethyl vinyl ether.
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