Efficient access to (1H)-isoindolin-1-one-3-carboxylic acid derivatives by orthopalladation and carbonylation of methyl arylglycinate substrates
摘要:
The orthopalladation of methyl arylglycinate derivatives has been studied. The reaction proceeds efficiently for different electron-withdrawing and electron-releasing substituents at the aryl ring. The carbonylation of the orthopalladated complexes affords, in a single step, substituted (1H)-isoindolin-1-one-3-carboxylates. These compounds constitute valuable synthetic intermediates and can be transformed diastereoselectively into octahydroisoindole-1-carboxylic acid derivatives, an important scaffold in the synthesis of many biologically active compounds. (C) 2011 Elsevier Ltd. All rights reserved.
A Brønsted Acid‐Catalyzed Michael Addition/Cyclization Sequence for the Diastereoselective Assembly of Chroman‐Bridged Polycyclic Isoindolinones
作者:Shaojing Jin、Jia Guo、Dongmei Fang、Yongwei Huang、Qilin Wang、Zhanwei Bu
DOI:10.1002/adsc.201801227
日期:2019.2
The first p‐TSA‐catalyzed highly diastereoselective Michael addition/cyclization of 3‐carboxylate‐substituted isoindolinones and ortho‐hydroxychalcones was developed to access a wide range of chroman‐bridgedpolycyclic isoindolinones. This reaction represents a novel and efficient method for the construction of complex bridgedpolycyclic isoindolinones. Moreover, several derivatizations were carried
Approach to Isoindolinones, Isoquinolinones, and THIQs via Lewis Acid-Catalyzed Domino Strecker-Lactamization/Alkylations
作者:Sivasankaran Dhanasekaran、Arun Suneja、Vishnumaya Bisai、Vinod K. Singh
DOI:10.1021/acs.orglett.5b03331
日期:2016.2.19
A one-pot, three-component synthesis of widely substituted isoindolinones and isoquinolinones, featuring a Lewisacid-catalyzed efficient Strecker reaction and lactamization sequence, affording products in good to high yields is reported. The method has also been extended to the synthesis of tetrahydroisoquinolines (THIQs) in high yields.
Efficient access to (1H)-isoindolin-1-one-3-carboxylic acid derivatives by orthopalladation and carbonylation of methyl arylglycinate substrates
作者:Sonia Nieto、Francisco J. Sayago、Pedro Laborda、Tatiana Soler、Carlos Cativiela、Esteban P. Urriolabeitia
DOI:10.1016/j.tet.2011.04.064
日期:2011.6
The orthopalladation of methyl arylglycinate derivatives has been studied. The reaction proceeds efficiently for different electron-withdrawing and electron-releasing substituents at the aryl ring. The carbonylation of the orthopalladated complexes affords, in a single step, substituted (1H)-isoindolin-1-one-3-carboxylates. These compounds constitute valuable synthetic intermediates and can be transformed diastereoselectively into octahydroisoindole-1-carboxylic acid derivatives, an important scaffold in the synthesis of many biologically active compounds. (C) 2011 Elsevier Ltd. All rights reserved.