1,3-Dihydro-3-(2-hydroxy-, 2-bromo- or 2-chloroethyl)-2H-isoindol-1-one
申请人:American Home Products Corporation
公开号:US04244966A1
公开(公告)日:1981-01-13
Derivatives of 1,3-dihydro-3-(2-hydroxyethyl) -2H-isoindol-1-one are disclosed. The derivatives are useful for treating ulcers in a mammal and for preventing or decreasing the secretion or availability of excessive amounts of gastric or hydrochloric acid in a mammal suffering from hyperchlorhydria and/or associated conditions.
The present invention relates to a use of a cyclic imidate as a ligand for catalysis in which the ligand contains sub-structure (Y) as a minimal structural motive, wherein the carbon atoms and the nitrogen atom can be optionally substituted by a chemical substituent.
A Tandem Elimination−Cyclization−Suzuki Approach: Efficient One-Pot Synthesis of Functionalized (<i>Z</i>)-3-(Arylmethylene)isoindolin-1-ones
作者:Caiyun Sun、Bin Xu
DOI:10.1021/jo801219j
日期:2008.9.19
A novel and efficient one-pot regioselective elimination-cyclization-Suzuki approach was developed to afford (Z)-3-arylmethyleneisoindolin-1-ones in good to excellent yields from easily accessible o-gem-dihalovinylbenzamides and organoboron reagents.
US4244966A
申请人:——
公开号:US4244966A
公开(公告)日:1981-01-13
Efficient one-step synthesis of chiral bidentate oxazoline-alcohol ligands via a cyclic imidate ester rearrangement
作者:Timothy Noël、Koen Robeyns、Luc Van Meervelt、Erik Van der Eycken、Johan Van der Eycken
DOI:10.1016/j.tetasy.2009.07.038
日期:2009.9
Various chiral bidentate oxazoline-alcohol ligands were obtained in a straightforward one-step synthesis via a cyclic imidate ester rearrangement. These chiral ligands were tested and compared in asymmetric diethylzinc additions to aldehydes resulting in selectivities of up to 87% ee. An interesting chirality switch was observed when a CPh2-tether instead of a CH2 was present, offering the opportunity for dual stereocontrol. (C) 2009 Elsevier Ltd. All rights reserved.