Substituted benzazaphospholes, herbicidal compositions and the use
申请人:Monsanto Company
公开号:US04319913A1
公开(公告)日:1982-03-16
This disclosure relates to novel substituted benzazaphospholes and to methods of preparing such compounds. This invention further relates to herbicidal compositions containing such benzazaphospholes and to herbicidal methods employing such compounds and compositions. The compounds of the present invention are members of a class of bicyclic hetero compounds containing only one phosphorus-nitrogen bond and different moieties bonded to the phosphorus and nitrogen.
Cyclic Phosphine Oxides and Phosphinamides from Di-Grignard Reagents and Phosphonic Dichlorides: Modular Access to Annulated Phospholanes
作者:Aaron M. Gregson、Steven M. Wales、Stephen J. Bailey、Anthony C. Willis、Paul A. Keller
DOI:10.1021/acs.joc.5b01476
日期:2015.10.2
The reaction between 1,4-di-Grignard reagents and phosphonous(III) dichlorides is a classical method for the direct synthesis of phospholanes. Reported here is an extension of this approach to the preparation of value-added, annulated phospholane oxides, achieved through the combination of carbocyclic-fused di-Grignardreagents and readily available phosphonic(V) dichlorides. The procedure is amenable