Synthesis of 2-(Isoquinolin-1-yl)prop-2-en-1-ones via Silver(I)-Catalyzed One-Pot Tandem Reaction of <i>ortho</i>-Alkynylbenzaldoximes with Propargylic Alcohols
作者:Ali Nikbakht、Saeed Balalaie、Bernhard Breit
DOI:10.1021/acs.orglett.9b02952
日期:2019.9.20
The silver(I)-catalyzed reaction of ortho-alkynylbenzaldoximes with propargylic alcohols represents a new strategy for the divergent one-pot synthesis of 2-(isoquinolin-1-yl) prop-2-en-1-ones via tandem 6-endo-cyclization, 1,3-dipolar cycloaddition, and intramolecular dehydrative opening of the 2,3-dihydroisoxazole ring. This synthetic protocol tolerates a wide variety of ortho-alkynylbenzaldoximes
银(I)催化邻炔基苯甲肟与炔丙醇的反应代表了一种新的策略,可通过串联6-内酯一锅法合成2-(异喹啉-1-基)丙-2-烯-1-酮-环化,1,3-偶极环加成和2,3-二氢异恶唑环的分子内脱水开放。该合成方案可耐受多种邻炔基苯甲酰肟和炔丙醇,并能以优异的产率提供相应的产物。