Tetrahedron p. 3151 - 3162 (1989)
Update date:2022-08-02
Topics:
Salaun, J.
Karkour, B.
Ollivier, J.
Enzymatic resolution of dimethyl 2-methylsuccinate, acyloin cyclization and base induced ring contraction provided 1-hydroxycyclopropanecarboxylic acids with high optical purity (>95percent e.e).Their derivatives opened a regio- and stereoselective way to optically active 2-vinylcyclobutanones (>84-90percent e.e), providing useful building blocks for further ring expansions.
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(1974)
