✦ LIBER ✦

Absolute Asymmetric Synthesis from Achiral Molecules in the Chiral Crystalline Environment

✍ Scribed by Masami Sakamoto

Book ID: 102792901
Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 506 KB
Volume: 3
Category: Article
ISSN: 0947-6539
DOI: 10.1002/chem.19970030506

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✦ Synopsis

Abstract

The current status of absolute asymmetric synthesis in a chiral crystalline environment has been reviewed. A number of topochemically controlled four‐center type photocycloadditions are described for a series of unsymmetrically substituted diolefin crystals and CT crystals. This concept has been applied to intramolecular photoreactions, and several successful absolute asymmetric syntheses have been achieved, involving Norrish Type II reaction, di‐π‐methane rearrangement, electrocyclization, thietane formation, oxetane formation, hydrogen abstraction by thiocarbonyl and alkenyl groups, and radical‐pair intermediates.

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