XLEBNIKOV, A. F.;NOVIKOV, M. S.;KOSTIKOV, R. R., ZH. ORGAN. XIMII, 26,(1990) N, S. 1899-1903
作者:XLEBNIKOV, A. F.、NOVIKOV, M. S.、KOSTIKOV, R. R.
DOI:——
日期:——
Khlebnikov, A. F.; Novikov, M. S.; Kostikov, R. R., Journal of Organic Chemistry USSR (English Translation), 1990, vol. 26, # 9.1, p. 1642 - 1645
作者:Khlebnikov, A. F.、Novikov, M. S.、Kostikov, R. R.
DOI:——
日期:——
<i>N</i>-<i>tert</i>-Butyl-<i>N</i>-(2,2-dichlorovinyl)carbamoyl Chloride: A Novel Building Block for the Synthesis of Nitrogen Heterocycles
作者:Mikhail S. Novikov、Alexander F. Khlebnikov、Alexander A. Stepanov、Rafael R. Kostikov
DOI:10.1055/s-1994-25572
日期:——
A synthesis of substituted 1,2,4-triazolidinones starting from N-tert-butyl-N-(2,2-dichlorovinyl)carbamoyl chloride (1) and hydrazine derivatives is reported. The reactions of 1 with ethylene-, phenylene- and propylenediamines followed by cyclizations yield the substituted cyclic ureas 6b-d, which may be used in the synthesis of bridged structures.