Efficient Method for the Preparation of Inverted Alkyl Carboxylates and Phenyl Carboxylates via Oxidation–Reduction Condensation Using 2,6-Dimethyl-1,4-benzoquinone or Simple 1,4-Benzoquinone
Oxidation–reduction condensation using in situ formed alkoxydiphenylphosphines, 2,6-dimethy-1,4-benzoquinone, and carboxylic acids provides a useful method for the preparation of inverted tertiary ...
Efficient synthesis of o-borylphenols is achieved through the Ru-catalyzed regio- and site-selective sp2 C–H borylation of aryl diphenylphosphinites followed by removal of the phosphorus directing group. A successful application to aryl phosphites enables practical one-pot borylation of phenols, demonstrating high synthetic utility of this protocol.
Punji, Benudhar; Balakrishna, Maravanji S., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 2006, vol. 45, # 6, p. 1390 - 1394
作者:Punji, Benudhar、Balakrishna, Maravanji S.
DOI:——
日期:——
US4025570A
申请人:——
公开号:US4025570A
公开(公告)日:1977-05-24
Metal-free electrophilic phosphination of electron-rich arenes, arenols and aromatic thiols with diarylphosphine oxides
作者:Tao Yuan、Shenlin Huang、Chun Cai、Guo-ping Lu
DOI:10.1039/c7ob02620j
日期:——
phosphination of arenes, arenols and thiols has been disclosed. This chemistry, in which diaryl(((trifluoromethyl)sulfonyl)oxy)phosphines as a kind of electrophilic phosphination reagents are in situ generated from diarylphosphine oxides, provides an efficient and mild approach for the synthesis of aromatic organophosphorus compounds.