A wide range of prochiral 1,3-diamines were first efficiently synthesized and subsequently desymmetrized by using lipase from Pseudomonas cepacia as catalyst and diallyl carbonate as alkoxycarbonylating agent. In all cases, the amino carbamates of R-configuration were recovered. Final selective cleavage of the N-allyloxycarbonyl moiety was carried out under mild reaction conditions, which demonstrates
Conversion of 1,3-dihalopropanes to propanes and/or cyclopropanes on treatment with different reducing agents
作者:Melvin S. Newman、G. S. Cohen、Robert F. Cunico、L. W. Dauernheim
DOI:10.1021/jo00956a004
日期:1973.8
Irwin,A.J. et al., Journal of the Chemical Society. Perkin transactions I, 1978, p. 1636 - 1642
作者:Irwin,A.J. et al.
DOI:——
日期:——
Synthesis of asymmetrized 2-benzyl-1,3-diaminopropane by a chemoenzymatic route: a tool for combinatorially developing peptidomimetics
作者:Luca Banfi、Giuseppe Guanti、Renata Riva
DOI:10.1016/s0957-4166(99)00371-7
日期:1999.9
Both enantiomers of monoacetamide 5, together with 'dipeptides' 30a,b and monocarbamates 24, (R)-43 and (S)-43, all derived from 2-benzyl-1,3-diaminopropane 4, were synthesized by a chemoenzymatic route starting from the known monoacetate 12. The behaviour of 4 and of the bis(acylated) derivatives 8-11 with respect to hydrolytic enzymes is also presented, together with an extensive study on the configurational stability of monoacylated derivatives of 4. (C) 1999 Elsevier Science Ltd. All rights reserved.