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2005
Thiazole derivatives
R 0260
Enantioselective Reaction of α-Lithiated Thiazolidines as New Chiral Formyl
Equivalents. — The reaction of lithiated thiazolidine or benzothiazolidine with
10- 127 Anion
aldehydes in the presence of (-)-sparteine proceeds with high enantioselectivity and
moderate diastereoselectivity. Each diastereomer is converted to optically active
1,2-ethanediols without substantial racemization during the reaction. Thus, a convenient method for the preparation of the target compounds via chiral formyl equivalents
is presented (to be continued). — (WANG, L.; NAKAMURA, S.; ITO, Y.; TORU*, T.;
Tetrahedron: Asymmetry 15 (2004) 19, 3059-pp; Dep. Appl. Chem., Nagoya Inst.
Technol., Showa, Nagoya 466, Japan; Eng.) — Klein
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