Diastereoface-discrimination reaction of lithium or titanium ester enolates with a chiral imine leading to stereodivergent synthesis of β-lactams

DOI: 10.1016/0040-4020(92)80013-6

Source and publish data:

Tetrahedron p. 5629 - 5638 (1992)

Update date:2022-08-04

Topics:

Authors:

Fujisawa, Tamotsu

Ukaji, Yutaka

Noro, Tomohiro

Date, Kengo

Shimizu, Makoto

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Article abstract of DOI:10.1016/0040-4020(92)80013-6

Diastereoselective addition reaction of ester enolates to a chiral imine possessing (4S, 5S)-4,5-dimethoxymethyl-2-methyl-1,3-dioxolane ring as a chiral auxiliary is reported, in which varying metal enolates resulted in the selective formation of (4S)- or

Full text of DOI:10.1016/0040-4020(92)80013-6

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Product name:(4R)-3-<(4S,5S)-4,5-dimethoxymethyl-2-methyl-1,3-dioxolan-2-yl>-2-p-methoxyphenyl-2-azaspiro<3.5>nonane-1-one

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