On the 1,3-isomerization of nonracemic α-(alkoxy)allyl stannanes
A set of optically active (E)-α-(alkoxy)allyl stannanes 10-13 and ent-10-13 was prepared by reduction of the acyl stannanes 4-6 with (R)-(+)-BINAL-H or LiA1H4-Chirald and protection of the resulting hydroxy stannanes with MOMC1 or BOMCl. On tre
Marshall, James A.,Welmaker, Gregory S.,Gung, Benjamin W.
p. 647 - 656
(2007/10/02)
SYNTHESIS OF NONRACEMIC γ-ALKOXY ALLYLSTANNANES BY STEREOSPECIFIC ANTI-STANNYL MIGRATIONON
The γ-alkoxy allylstannane 5b, prepared in high yield by BF3*OEt2 promoted rearrangement of the (S)--α-alkoxy allylstannane 4b, affords the syn 1,2-diol derivatives 8 and 9 in high yield and excellent ee upon condensation with various aldehydes.
Marshall, James A.,Gung, Wei Yi
p. 2183 - 2186
(2007/10/02)
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