Toward a versatile allylation reagent: practical, enantioselective allylation of acylhydrazones using strained
Richard Berger1, Philippe M A Rabbat, James L Leighton
1Department of Chemistry, Columbia University, New York, New York 10027, USA.
Abstract:
A highly practical method for the enantioselective allylation of acylhydrazones has been developed. The previously reported strained silacycle reagent 1 reacts with a wide variety of acylhydrazones to give the hydrazide products with good enantioselectivity (83-89% ee, typically). It has been demonstrated that the products may be isolated without chromatography by recrystallization in >/=98% ee.
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