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´ó¼ÒºÃ,Çë½ÌÒ»ÏÂÔõô»Ø´ðÕâÑùµÄÁ½¸öÎÊÌâ: ÎÒ×öµÄÊÇÊÖÐÔ´ß»¯¼ÁÔÚË®ÀïµÄ´ß»¯,Ëá×öÖú´ß»¯,½á¹ûÉó¸åÈËÎÊÁËÁ½¸öÄѻشðµÄÎÊÌâ: Ò»: Ôö¼ÓÖ¬·¾×å´ß»¯µ×ÎïÔÚ±í¸ñÖÐ,ÒòΪÎÒÔÚ±í¸ñÖÐÁгöµÄµ×Îï¶¼ÊÇ´ø·¼»·µÄ. ¶þ:Ϊʲô´ß»¯¼ÁµÄÁ¿¼õС»á¶ÔӳѡÔñÐÔÌá¸ß. Çë½Ì¸÷λÔõôÑù×÷´ðΪºÃ?¸¶Ô»°ÈçÏÂ: -------------------- Referee A Comment: -------------------- "The authors describe highly enantio- and diastereo selective Michael reaction of aldehyde to nitroalkene catalyzed by originally developed diethylprolinol silyl ether catalyst 6 that possessed long alkyl chain at C4 position, as surfactant-type organocatalyst with formic acid as co-catalyst. The reaction is carried out in the presence of water, therefore it can be avoided environmental problems and applicable to large scale synthesis in industrial field. I shall decide whether to accept the manuscript after major revisions. Comments: 2. Author should employ alkyl substituted nitro alkene such as 1-nitrohex-1-ene in Table 2.3. Ref. 10 should be inserted to ¡°Reference and Note¡± in the text. (should not be supporting information). -------------------- Referee B Comment: -------------------- P1, right column, line 7-5: The author should give some comment on the result of increase in diastereoselctivity by lowering the catalyst loading. |
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2Â¥2010-02-05 10:59:46
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