221908-50-5Relevant articles and documents
Graphene oxide as an acid catalyst for the room temperature ring opening of epoxides
Dhakshinamoorthy, Amarajothi,Alvaro, Mercedes,Concepcion, Patricia,Fornes, Vicente,Garcia, Hermenegildo
, p. 5443 - 5445 (2012)
The minute amount of hydrogen sulfate groups introduced into the graphene oxide (GO) obtained by Hummers oxidation of graphite renders this material as a highly efficient, recyclable acid catalyst for the ring opening of epoxides with methanol and other primary alcohols as nucleophile and solvent.
Scandium trifluoromethanesulfonate-catalyzed mild, efficient, and selective cleavage of acetates bearing a coordinative group
Kajiro, Hiroshi,Mitamura, Shuichi,Mori, Atsunori,Hiyama, Tamejiro
, p. 1689 - 1692 (2007/10/03)
Scandium trifluoromethanesulfonate is a useful Lewis acid catalyst for cleavage of acetates containing coordinative groups adjacent to the acetyl carbonyl. The reaction proceeds under weak acidic conditions at room temperature. Racemizable α-keto acyloxy compounds are deacetylated without racemization. Selective mono-deacetylation at the 10-position of paclitaxel has been achieved.
