Synthesis of Tetrahydropyridazines
<i>via</i>
Pd‐Catalyzed Carboamination of Alkenyl Hydrazones
作者:Yajing Guo、Jinbo Zhao、Qian Zhang
DOI:10.1002/adsc.201901378
日期:2020.3.4
products and biologicallyactive entities, via Pd‐catalyzed carboamination of readily available alkenyl hydrazones with aryl and alkenyl halides. Preliminary studies showed its promise for enantioselective synthesis. This work offers an expedient access to the tetrahydropyridazine scaffold bearing substitution patterns, thus significantly increasing the availability of these derivatives for downstream
4-Pentenyl hydrazines, CH2=CHCH2CH2CH2NHNHR, react with phenylselenenyl sulfate, produced by diphenyl diselenide, ammonium persulfate and trifluoromethanesulfonic acid, to afford phenylseleno-substituted hexahydropyridazine or pyrrolidinamine derivatives depending on the nature of the substituent R. (C) 1997 Elsevier Science Ltd.