title: A simple, convenient and chemoselective formylation of sterols by Vilsmeier reagent.
abstract: Vilsmeier reagent (DMF-POCl(3)) was used as an efficient formylating agent. Several sterols having sec-hydroxyl group at 3/17-position have been modified into respective formate esters. The method is simple, mild, chemoselective and provides sec-alcoholic protection in good yields.
authors.affiliation: Central Institute of Medicinal and Aromatic Plants (CIMAP), P.O. CIMAP, Kukrail Road, Lucknow 226 015, India.
authors.forename: Vandana
authors.initials: V
authors.lastname: Srivastava
authors.forename: Arvind Singh
authors.initials: AS
authors.lastname: Negi
authors.forename: J K
authors.initials: JK
authors.lastname: Kumar
authors.forename: M M
authors.initials: MM
authors.lastname: Gupta
mesh_terms: D005563:Formic Acid Esters / Q000138:chemical synthesis* / Q000737:chemistry; D007202:Indicators and Reagents / Q000737:chemistry*; D013261:Sterols / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D005563:Formic Acid Esters; D007202:Indicators and Reagents; D013261:Sterols