Organic letters

Pd-catalyzed carbocyclization-Negishi cross-coupling cascade: A novel approach to 1α, 25-dihydroxyvitamin D3 and analogues

C Gómez-Reino, C Vitale, M Maestro, A Mourino

Index: Organic Letters, , vol. 7, # 26 p. 5885 - 5887

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Citation Number: 24

Abstract

... Volume: Page: ... Organic Letters. ... As expected, the 6-methylvitamin D 3 analogue 1c showed a great propensity to isomerize to the corresponding previtamin D 3 form 7. The isomerization equilibrium was reached upon heating a solution of 1c in CD 3 OD at 40 °C ...