Hesek D, Lee M, Yamaguchi T, Noll BC, Mobashery S. Facile preparation of a highly functionalized tetrahydropyran by catalytic hydrogenation of an oxazoline.
J Org Chem 2008;
73:7349-52. [PMID:
18690743 DOI:
10.1021/jo801037z]
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Abstract
2-Amino-1,5-anhydro-2-deoxy-D-glucitol, a highly functionalized tetrahydropyran, is a versatile building unit in many natural products. A facile route to this type of synthetic building unit from the corresponding 2-aminopyranoses, as exemplified by an application to D-glucosamine, is outlined. A simple catalytic hydrogenation at C-1 of an oxazoline constructed from the corresponding 2-aminopyranose results in the desired product.
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