Reactivity of conjugated azoalkenes towards α-amino acid ethyl esters
摘要:
The synthesis of Z- and E-arylhydrazones by 1,4-conjugate addition of glycine, L-alanine and L-tyrosine ethyl esters to phenylazostilbene 1, p-nitrophenylazostilbene 2 and p-nitrophenylazocyclohexene 3 is described. Optically active N-functionalized 2-aminocyclohexanones 22-26 are obtained by TiCl3-catalysed hydrolysis of the corresponding hydrazones. However, they have been shown to be unstable, as they undergo easy oxidation by air. X-Ray analysis of the phenylhydrazone 8a in the Z configuration is also reported.
Effect of Metal Ions in Organic Synthesis; XVIII. A Simple and High-Yield Direct Synthesis of 1-Arylamino-3-aminocarbonylpyrroles by the Copper(II) Chloride-Catalyzed Reaction of Arylazoalkenes with 3-Oxoalkanamides
作者:Orazio Attanasi、Stefania Santeusanio
DOI:10.1055/s-1983-30496
日期:——
Oxidative Addition of N-Aminophthalimide and 3-Amino-2-methylquinazolin-4(3H)-one to Conjugated Azocyclopentenes and Azocyclohexenes
作者:S. M. Buchaka、M. A. Kuznetsov、J. G. Schantl
DOI:10.1023/b:cohc.0000044572.81905.92
日期:2004.7
ATTANASI, O.;SANTEUSANIO, S., SYNTHESIS, BRD, 1983, N 9, 742-744
作者:ATTANASI, O.、SANTEUSANIO, S.
DOI:——
日期:——
ATTANASI, O.;BONIFAZI, P.;BUIANI, F., J. HETEROCYCL. CHEM., 1983, 20, N 4, 1077-1080
作者:ATTANASI, O.、BONIFAZI, P.、BUIANI, F.
DOI:——
日期:——
ATTANASI, O.;FILIPPONE, P., SYNTHESIS, BRD, 1984, N 5, 422-424