Copper(II) Chloride Mediated Racemization-Free Hydrolysis of α-Alkylated Ketone Samp-Hydrazones
摘要:
Treatment of ketone SAMP-hydrazones 1a-k with an aqueous copper(II) chloride solution yields the corresponding ketones 2a-k in 52-94% yield and with high enantiomeric purities (ee = 89-99%). The cleavage conditions do not affect functionalities sensitive to oxidation and strong acids. The alkylation/cleavage protocol can be carried out in 'one-pot'.
Piperidine Derivatives. IV. 1,3-Disubstituted-4-aryl-4-acyloxy Piperidines<sup>*1</sup>
作者:A. ZIERING、ALEX MOTCHANE、JOHN LEE
DOI:10.1021/jo01362a053
日期:1957.11
IORIO M. A.; CASY A. F.; MAY E. L., EUR. J. MED. CHEM., 1975, 10, NO 2, 178-181
作者:IORIO M. A.、 CASY A. F.、 MAY E. L.
DOI:——
日期:——
GUPTA, K. A.;SAXENA, ANIL K.;JAIN, PADAM C.;ANAND, NITYA, INDIAN J. CHEM., 26,(1987) N 4, 344-347
作者:GUPTA, K. A.、SAXENA, ANIL K.、JAIN, PADAM C.、ANAND, NITYA
DOI:——
日期:——
US7705153B2
申请人:——
公开号:US7705153B2
公开(公告)日:2010-04-27
Copper(II) Chloride Mediated Racemization-Free Hydrolysis of α-Alkylated Ketone Samp-Hydrazones
作者:Dieter Enders、Thomas Hundertmark、Ryszard Lazny
DOI:10.1080/00397919908085731
日期:1999.1.1
Treatment of ketone SAMP-hydrazones 1a-k with an aqueous copper(II) chloride solution yields the corresponding ketones 2a-k in 52-94% yield and with high enantiomeric purities (ee = 89-99%). The cleavage conditions do not affect functionalities sensitive to oxidation and strong acids. The alkylation/cleavage protocol can be carried out in 'one-pot'.