134284-56-3Relevant articles and documents
Formylation and dichloromethylation as alternative directions of rieche reaction. A novel to the synthesis of sterically hindered aromatic dialdhydes
Yakubov, Alexander P.,Tsyganov, Dmitry V.,Belen'kii, Leonid I.,Krayushkin, Mikhail M.
, p. 3397 - 3404 (1993)
A previously unknown direction of Rieche reaction has been found: formylation of mesitylene, m-xylene, and durene with dichloromethyl methyl ether in the presence of aluminium trichloride and, to lesser extent, of titanium tetrachloride give the respective benzylidene dichlorides besides aldehydes. A novel approach to the synthesis of sterically hindered aromatic dialdehydes has been offered which involves the transformation of a monoaldehyde into the corresponding benzylidene dichloride, Rieche formylation of the latter, and hydrolysis of dichloromethyl aldehyde formed.
