KRUSE, C. G.;TROOST, J. J.;COHEN-FERNANDES, P.;LINDEN, H. VAN DER;LOON, J+, REC. TRAV. CHIM. PAYS-BAS, 107,(1988) N 4, C. 303-309
作者:KRUSE, C. G.、TROOST, J. J.、COHEN-FERNANDES, P.、LINDEN, H. VAN DER、LOON, J+
DOI:——
日期:——
Single-step conversion of aliphatic, aromatic and heteroaromatic primary amines into piperazine-2,6-diones
作者:C. G. Kruse、J. J. Troost、P. Cohen-Fernandes、H. van der Linden、J. D. van Loon
DOI:10.1002/recl.19881070402
日期:——
single-step method for the synthesis of 1,4-disubstituted piperazine-2,6-diones (4) in excellent yields from the corresponding aliphatic, aromatic and heteroaromaticprimaryamines and iminodiacetic acids (1) is described. A possible mechanism is discussed and the presence of intermediate 6a is confirmed by high-resolution proton NMR spectroscopy. The subsequent two-step conversion of dione 4a into the deoxygenated