1992年4月
ASYMMETRIC HYDROGENATION OF PROCHIRAL CARBOXYLIC-ACIDS CATALYZED BY THE 5-COORDINATE RUTHENIUM(II)-HYDRIDE COMPLEX [RUH(BINAP)2]PF6 (BINAP=(R)-OR (S)-2,2'-BIS(DIPHENYLPHOSPHINO)-1,1'-BINAPHTHYL)
JOURNAL OF ORGANOMETALLIC CHEMISTRY
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- 巻
- 428
- 号
- 1-2
- 開始ページ
- 155
- 終了ページ
- 167
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- 出版者・発行元
- ELSEVIER SCIENCE SA LAUSANNE
The five-coordinate complex [RuH(binap)2]PF6 (I, binap = (R)- or (S)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl) has been found to have sufficient catalytic activity for asymmetric hydrogenation of itaconic acid and other prochiral carboxylic acids under mild conditions. The catalytic hydrogenation of itaconic acid by I was examined under a variety of conditions, and the addition of triethylamine was found to effect high enantioselectivities (> 90% ee). H-1 and P-31 NMR examinations of reaction mixtures of I and itaconic acid under conditions similar to the hydrogenation suggested the formation of ruthenium species containing one binap chelate.
- リンク情報
- ID情報
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- ISSN : 0022-328X
- Web of Science ID : WOS:A1992HU86900012