Chemoselective and Chemospecific Protection and Deprotection of a Carbonyl Group Using Polystyrene Divinylbenzene Sulfonic Acid
作者:Sanjeev K. Verma、Manisha Sathe、M. P. Kaushik
DOI:10.1080/00397910903161702
日期:2010.5.11
Chemospecific protection of one carbonylgroup of two identical carbonyls of 2,2-dialkyl-1,3-cyclohexanedione and chemoselective protection of aliphatic or aromatic carbonyls in the presence of conjugated carbonyl compounds using cross-linked polystyrene divinyl benzene sulfonic acid (SPS) as a heterogeneous catalyst has been demonstrated.
A polyether diol compound represented by the following formula (3):
where R5, R6, R7 and R8, which may be the same as or different from each other, each represent a linear or branched alkyl group having 1 to 6 carbon atoms.