BONJOCH, J.;SERRET, I.;BOSCH, J., TETRAHEDRON, 1984, 40, N 13, 2505-2511
作者:BONJOCH, J.、SERRET, I.、BOSCH, J.
DOI:——
日期:——
US9856261B2
申请人:——
公开号:US9856261B2
公开(公告)日:2018-01-02
Synthesis of 2,5-piperidinediones. regioselectivity in the dieckmann cyclization
作者:Josep Bonjoch、Isabel Serret、Joan Bosch
DOI:10.1016/s0040-4020(01)83502-x
日期:1984.1
regioisomer was isolated as the main product. Transesterification of ethyl β-keto esters and with benzyl alcohol followed by hydrogenolysis and decarboxylation of the resulting benzyl esters and led to 1-benzyl- 2,5-piperidinedione (). The preparation of some 4-alkyl- and 4-alkoxycarbonylalkyl derivatives was achieved by alkylation of with the appropriate halide and further hydrogenolysis.