Tetrahedron p. 7943 - 7954 (1993)
Update date:2022-09-26
Topics:
Chen, Chen
Crich, David
An efficient asymmetric synthesis of the A-ring of 1α,25-dihydroxyvitamin D3 from α-bromoacrolein is described.The key steps of the synthesis are the Evans type syn-selective asymmetric aldol reaction of bromoacrolein with the boron enolate of
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