Acylimine mediated N N bond cleavage of pyrazolidinediones and subsequent conversion to dihydropyrimidinediones and malonamides
摘要:
Acylimines 3 were identified as intermediates in the fluorenyl assisted N-N bond cleavage of pyrazolidinediones 1. Subsequent conversion of 3 to dihydropyrimidinediones 4 and malonamides 7-10 is described. (C) 2000 Published by Elsevier Science Ltd.
Acylimine mediated N N bond cleavage of pyrazolidinediones and subsequent conversion to dihydropyrimidinediones and malonamides
作者:Yong Gong、Mark J Bausch、Linhua Wang
DOI:10.1016/s0040-4039(00)01865-7
日期:2001.1
Acylimines 3 were identified as intermediates in the fluorenyl assisted N-N bond cleavage of pyrazolidinediones 1. Subsequent conversion of 3 to dihydropyrimidinediones 4 and malonamides 7-10 is described. (C) 2000 Published by Elsevier Science Ltd.
Chirale Pyrazolidindione, 4. Mitt. Synthese und Konfiguration von optisch aktiven Pyrazolidindionen
作者:Joachim Knabe、Wolfgang Wunn
DOI:10.1002/ardp.19803130702
日期:——
Die Racemateund die Enantiomere der 1‐Phenylpyrazolidindione 5a–5e werden mit Hilfe der Dicyclohexylcarbodiimidmethode synthetisiert. Ihre Konfiguration und die der Zwischenprodukte wird abgeleitet.