Synlett 2004(2): 0335-0337  
DOI: 10.1055/s-2003-45000
LETTER
© Georg Thieme Verlag Stuttgart · New York

Efficient Preparation of 2-Deoxy-3,5-di-O-p-toluoyl-α-d-ribofuranosyl Chloride

Ilirian Dhimitruka, John SantaLucia Jr.*
Wayne State University, Department of Chemistry, 5101 Cass Ave., Detroit, MI 48202, USA
Fax: +1(313)5778822; e-Mail: jsl@chem.wayne.edu;
Further Information

Publication History

Received 25 August 2003
Publication Date:
18 December 2003 (online)

Abstract

An efficient method for the synthesis of 1-O-methyl-3,5-di-O-p-toluoyl-2-deoxy-α/β-d-ribose is described. Upon treatment with HCl, 2-deoxy-3,5-di-O-p-toluoyl-α-d-ribofuranosyl chloride, previously unstable, was produced as a white solid, stable in air ­indefinitely.

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Dhimitruka, I.; SantaLucia, J. Jr., manuscript in preparation.

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p-Toluic anhydride was prepared as follows: p-Toluoyl chloride (1 equiv), water (0.5 equiv) and Et3N (1 equiv) were dissolved in acetone (0.03 mol/30 mL). The solution was stirred for 2 h then filtered. Et3N·HCl at 0 °C was washed with acetone (30 m L) and the combined acetone solutions evaporated to afford the product.