Tetrahedron Letters p. 2081 - 2084 (1980)
Update date:2022-07-29
Topics:
Ojima, Iwao
Inaba, Shin-ichi
The reaction of dimethylketene methyl trimethylsilyl acetal with the Schiff bases of chiral α-amino esters in the presence of titanium tetrachloride gave the corresponding β-lactams with extremely high stereoselectivity (up to <*>99percent diastereomeric purity).Possible mechanism for the highly effective assymmetric induction using "titanium template" is proposed.
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Doi:10.1248/cpb.28.2763
(1980)Doi:10.1021/ic0495463
(2004)Doi:10.1248/cpb.29.150
(1981)Doi:10.1016/S0040-4039(00)92190-7
(1980)Doi:10.1016/0022-328X(86)80433-8
(1986)Doi:10.1021/tx9004538
(2010)
