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Reduction by a Model of NAD(P)H. 33. Steric and Electronic Effects on Asymmetric Reduction of 2-Acylpyridines
作者:Atsuyoshi Ohno、Jun-ichi Nakai、Kaoru Nakamura、Takehiko Goto、Shinzaburo Oka
DOI:10.1246/bcsj.54.3482
日期:1981.11
Series of alkyl and fluorinated alkyl 2-pyridinyl ketones have been reduced by a chiral NAD(P)H-model (Me2PNPH) in the presence of magnesium ion in acetonitrile. Optical yield decreases in the order of substituent: CH3>C2H5>C(CH3)3>CH(CH3)2 and CH3>CH2F>CHF2>CF3. The results have been interpreted in terms of conformation of the substrates for alkyl 2-pyridinyl ketones and of electronic competitional
在
乙腈中
镁离子存在下,一系列烷基和
氟化烷基 2-
吡啶基酮已被手性
NAD(P)H-模型 (Me2
PNPH) 还原。光学产率按取代基的顺序降低:
CH3>
C2H5>C( )3>CH( )2 和 >
CH2F>
CHF2>
CF3。结果已根据烷基 2-
吡啶基酮的底物构象和
氟化烷基 2-
吡啶基酮的两个取代基之间的电子竞争效应进行解释。
镁离子在还原的过渡态冻结分子间排列。
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OHNO, ATSUYOSHI;MIKATA, YUJI;GOTO, MUTSUO;KASHIWAGI, TAKESHI;TANAKA, TAKA+, BULL. CHEM. SOC. JAP., 64,(1991) N, C. 81-86
作者:OHNO, ATSUYOSHI、MIKATA, YUJI、GOTO, MUTSUO、KASHIWAGI, TAKESHI、TANAKA, TAKA+
DOI:——
日期:——
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OHNO, ATSUYOSHI;LEE, JOUNG, HEE;YASUMA, TSUNEO;OKA, SHINZABURO, TETRAHEDRON LETT., 1984, 25, N 19, 1995-1998
作者:OHNO, ATSUYOSHI、LEE, JOUNG, HEE、YASUMA, TSUNEO、OKA, SHINZABURO
DOI:——
日期:——
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OHNO ATSUYOSHI; YASUMA TSUNEO; NAKAMURA KAORU; OKA SHINZABURO, BULL. CHEM. SOC. JAP., 59,(1986) N 9, 2905-2906
作者:OHNO ATSUYOSHI、 YASUMA TSUNEO、 NAKAMURA KAORU、 OKA SHINZABURO
DOI:——
日期:——
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OHNO, ATSUYOSHI;YASUMA, TSUNEO;NAKAMURA, KAORU;OKA, SHINZABURO, ISR. J. CHEM., 28,(1987----1988-0-0) N 1, 51-55
作者:OHNO, ATSUYOSHI、YASUMA, TSUNEO、NAKAMURA, KAORU、OKA, SHINZABURO
DOI:——
日期:——