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Aldol reaction of trichlorotitanium enolates. Revaluation of the boat transition state

โœ Scribed by Eiichi Nakamura; Isao Kuwajima

Publisher
Elsevier Science
Year
1983
Tongue
French
Weight
257 KB
Volume
24
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

The trichlorotitanium enolates generally undergo an erythro _____ selective aldol reaction except one case which gives a threo aldol.

A new form of the boat transition state has been proposed.

The chair transition state (TS) hypothesis has been the central dogma in aldol chemistry.

1 Here we present an example of the aldol reaction preferring a boat TS and some evidence of the general importance of this TS in the aldol reactions of common metal enolates.

๐Ÿ“œ SIMILAR VOLUMES

Origins of ฯ€-face selectivity in the ald
Origins of ฯ€-face selectivity in the aldol reactions of chiral E-enol borinates: a computational study using transition state modelling.
โœ Anna Vulpetti; Anna Bernardi; Cesare Gennari; Jonathan M. Goodman; Ian Paterson ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 758 KB

A molecular mechamcs translhon state model 1s used to analyse the stereoselechvlty of a sene~ of aldol reacbons of E-en01 bormates of type 3 wth aldehydes The model reproduces the sense and degree of x-face selectlvlty for the choral E-enol bormates 8,11,13 and 14 m the Table Enolates 8 and 10 prefe