An efficient P-arylation of secondary phosphine oxides has been achieved through the ligand-free copper-catalyzed addition of H–P(O) bonds to in situ generated arynes at room temperature. This transformation provides a straightforward route to the formation of the aryl–P bond with wide functional group compatibility, which produces arylphosphine oxides in up to 99% yield.
[EN] PROCESS FOR PREPARATION OF ARYL PHOSPHOROUS COMPOUNDS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS ARYL PHOSPHORÉS
申请人:COUNCIL SCIENT IND RES
公开号:WO2014024212A1
公开(公告)日:2014-02-13
The present invention relates to cost effective, transition-metal-free one pot process for the preparation of aryl phosphorous compounds of formula (I). Particularly, the present invention provides a process for C-P bond formation. In particular, the invention relates to mild fluoride induced generation of aryne species in situ which allows P-C bond formation to obtain aryl phosphorous compounds of formula (I) under mild condition.
PROCESS FOR PREPARATION OF ARYL PHOSPHOROUS COMPOUNDS
申请人:Council of Scientific & Industrial Research
公开号:US20150210725A1
公开(公告)日:2015-07-30
The present invention relates to cost effective, transition-metal-free one pot process for the preparation of aryl phosphorous compounds of formula (I). Particularly, the present invention provides a process for C—P bond formation. In particular, the invention relates to mild fluoride induced generation of aryne species in situ which allows P—C bond formation to obtain aryl phosphorous compounds of formula (I) under mild condition.
P-Arylation: Arynes to Aryl-Phosphonates, -Phosphinates, and -Phosphine Oxides
作者:Ranjeet A. Dhokale、Santosh B. Mhaske
DOI:10.1021/ol400780f
日期:2013.5.3
Synthesis of organo-phosphorus compounds and their application in organic synthesis and life sciences has been a topic of contemporary interest. Michaelis–Arbuzov reaction is the most extensively utilized method for their preparation, which works well only with aliphatic halides. Hence, relatively harsh reaction conditions using transition-metal-catalyzed P-arylation (Arbuzov/Hirao reaction) are used
New materials for electroluminescence and the utilization thereof
申请人:Heun Susanne
公开号:US20070080343A1
公开(公告)日:2007-04-12
The present invention relates to organic semiconductors which contain structural units L=X and in addition structural units which emit light from the triplet state. The materials according to the invention are more soluble and easier to synthesise and are therefore more suitable for use in organic light-emitting diodes than comparative materials in accordance with the prior art.