Tetrahedron p. 1209 - 1218 (1989)
Update date:2022-09-26
Topics:
Sato, Tsuneo
Otera, Junzo
Nozaki, Hitosi
The Sn-S bonds in thiostannanes, BunSn(SPh)4-n, are activated towards acetals in the presence of BF3*OEt2.Acetals of various aldehydes and ketones are converted into the corresponding monothioacetals under mild conditions.Employment of α-enal acetals induces Michael addition to give synthetically useful γ-alkoxyally sulfides.
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