New synthetic approaches to bridgehead nitrogen heterocycles. Derived from 3-amino-2,3-dihydro-5,6-dimethyl-2-thioxothieno[2,3-<i>d</i>]pyrimidin-4(1<i>H</i>)-one and its salts
作者:Andrea Santagati、Maria Modica、Maria Santagati
DOI:10.1002/jhet.5570370523
日期:2000.9
Bridgehead nitrogen heterocycles 3a, b and 6a, b containing the thieno-pyrimidine system have been prepared from the versatile intermediates 3-amino-2,3-dihydro-5,6-dimethyl-2-thioxo-thieno[2,3-d]pyrimidin-4-(1H)-one 1 and its hydrazinium or potassium salts 4; their structural elucidation is also reported.
由通用中间体3-氨基-2,3-二氢-5,6-二甲基-2-硫代-噻吩并[2,3- d]制备了含有噻吩并嘧啶系统的桥头氮杂环3a,b和6a,b。 ] pyrimidin-4-(1 H)-one 1及其肼盐或钾盐4 ; 他们的结构阐明也有报道。