Palladium mediated synthesis of isoindolinones and isoquinolinones
摘要:
The palladium-catalyzed reactions of 2-iodo-N-substituted benzamides 5-10 with acrylic esters 11-14 led to N-substituted-3-alkylisoindolinone esters 15-22 in good yields. The esters of isoindolinones 15-22 underwent hydrolysis reactions yielding the N-aryl-1,2,3,4-tetrahydro-1-oxoisoquinoline-3-carboxylic acid 26-31 in good yields. (c) 2005 Elsevier Ltd. All rights reserved.
Copper-catalyzed tandem aryl–halogen hydroxylation and CH<sub>2</sub>Cl<sub>2</sub>-based N,O-acetalization toward the synthesis of 2,3-dihydrobenzoxazinones
作者:Xuwen Chen、Wenyan Hao、Yunyun Liu
DOI:10.1039/c7ob00625j
日期:——
The concise synthesis of 2,3-dihydro-4H-benzo[e][1,3]oxazin-4-ones has been accomplished by copper-catalyzedtandemreactions of o-halobenzamides, LiOH and dichloromethane. The aryl–halogen bond hydroxylation and subsequent N,O-acetalization on CH2Cl2 are enabled under catalytic conditions which allows the generation of C(sp2)–O, C(sp3)–O and C(sp3)–N bonds to give the target products.