N-nitrosation and N-nitration of lactams. From macrolactams to macrolactones
作者:Núria Torra、Fèlix Urpí、Jaume Vilarrasa
DOI:10.1016/0040-4020(89)80118-8
日期:1989.1
N-Nitroso and N-nitro derivatives of lactams, from 2-pyrrolidinone to 15-pentadecanelactam, have been characterised by 1H NMR, 13c NMR, and IR spectroscopy. The conversion of these nitrosolactams and nitrolactams to lactones has been systematically (re)investigated.
内酰胺的N-亚硝基和N-硝基衍生物,从2-吡咯烷酮到15-十五烷内酰胺,已通过1 H NMR,13 c NMR和IR光谱进行了表征。这些亚硝基内酰胺和硝基内酰胺向内酯的转化已得到系统地(重新)研究。
TORRA, NURIA;URPI, FELIX;VILARRASA, JAUME, TETRAHEDRON, 45,(1989) N, C. 863-868
作者:TORRA, NURIA、URPI, FELIX、VILARRASA, JAUME
DOI:——
日期:——
BARTRA, MARTI;BOU, VALENTI;GARCIA, JORDI;URPI, FELIX;VILARRASA, JAUME, J. CHEM. SOC. CHEM. COMMUN.,(1988) N 4, 270-272
A new method is reported for the conversion of azidoacids into lactams, via thioester formation and in situ azide reduction and cyclisation under high-dilution conditions; since the quantitative conversion of macrolactams to macrolactones has been shown to be feasible, this results in an indirect, alternative macrolactonisation procedure.