[EN] COMPOSITION FOR DYEING KERATIN FIBERS<br/>[FR] COMPOSITION POUR COLORER DES FIBRES DE KÉRATINE
申请人:OREAL
公开号:WO2019004012A1
公开(公告)日:2019-01-03
The present invention relates to a composition for dyeing keratin fibers, comprising (a) at least one direct dye; and (b) at least one sulfolane compound represented by the following formula (I): wherein wherein R1, R2, R3, R4, R5, R6, R7 and R8 independently denote a hydrogen atom, a halogen atom, a monovalent, substituted or non-substituted C1-30 aliphatic group, or a monovalent, substituted or non-substituted C6-30 aromatic group, with the proviso that not all R1, R2, R3, R4, R5, R6, R7 and R8 denote hydrogen atoms.
Regioselective carbonyl insertion reactions with α-substituted heterocycles
作者:Kanjai Khumtaveeporn、Howard Alper
DOI:10.1039/c39950000917
日期:——
The rhodium(I) complex [Rh(cod)Cl]2 catalyses the selective insertion of carbon monoxide into the ring carbonâheteroatom bond of a side chain ether or thioether functional group of a tetrahydrothiophene or tetrahydrofuran.