The Synthesis of Pyrrolo[1,2-a]pyrazin-1(2H)-ones and Pyrrolo[1,2-b]pyridazin-6(5H)-ones
作者:Derek McHattie、Robert Buchan、Martin Fraser、Paul V. S. Kong Thoo Lin
DOI:10.3987/com-92-6085
日期:——
The pyrrolo[1,2-a]pyrazin-1(2H)-ones (10), (11), (12) and (13) and the pyrrolo[1,2-b[pyridazin-6(5H)-one (18) were prepared either a) directly by Chichibabin quaternisation-cyclisation of the corresponding methoxy-methylpyrazine or pyridazine or b) by hydrogen halide hydrolysis of methoxypyrrolo[1,2-a]pyrazines and methoxypyrrolo[1,2-b]pyridazines. Protonation studies and some reactivity of the systems are discussed.