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lxqchain

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[ Last edited by lxqchain on 2011-6-30 at 12:40 ]
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James-CG

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First,  Formation of  -C-C-C-O-B-,  cis- (B and COBn), cyclic ring
Then Oxidation to remove B to form trans-  structure
3Â¥2011-06-30 13:58:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
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James-CG

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lxqchain(½ð±Ò+20): 1 2011-06-30 14:03:21
jiangchunyong(½ð±Ò+1): лл 2011-06-30 14:30:12
First, Formation of C-C-C-O-B, cis-  ring
Then  Oxidation to remove B to form trans-  structure
2Â¥2011-06-30 13:56:19
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lxqchain

гæ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by James-CG at 2011-06-30 13:58:45:
First,  Formation of  -C-C-C-O-B-,  cis- (B and COBn), cyclic ring
Then Oxidation to remove B to form trans-  structure

ÔÙÎÊһϣ¬Ä¿Ç°ÓÐÀàËÆµÄÊÖÐÔÊÔ¼Á¿ÉÒÔÓÃÓÚÕâÀà·´Ó¦Âð
4Â¥2011-06-30 14:04:41
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

James-CG

ľ³æ (ÕýʽдÊÖ)

Borane reagent is so typical, other chiral borane reagent should go the same way, but ee, depending on the ligand on borane. IPC is one of the best, very bulky and stable
5Â¥2011-06-30 14:10:48
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