𝔖 Bobbio Scriptorium
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An improved synthesis of the diketopiperazine catalyst cyclo[(S)-HIS-(S)-PHE]

✍ Scribed by Mani S. Iyer; Mark A. Lipton

Book ID
108477073
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
151 KB
Volume
3
Category
Article
ISSN
0960-894X

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πŸ“œ SIMILAR VOLUMES

A conformational comparison of cyclo-[(S
A conformational comparison of cyclo-[(S)-His-(S)-Leu] and cyclo-[(S)-His-(S)-Phe], catalysts for the asymmetric addition of HCN to aldehydes
✍ David J.P. Hogg; Michael North; Robert B. Stokoe πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 French βš– 945 KB

Cycle-l(S)-His-(S)-L.eu] adopts a confirmation in solution in which rhe imidazole ring is folded over the diketopiperasine ring. This is the opposite confirmation IO that deremdned for cycle-i(S)-His-(S)-Phel. and "ray explain the opposite sense of asymnaerric induction between the two catalysts. q

The catalytically active conformation of
The catalytically active conformation of cyclo-[(S)-His-(S)-Phe] as determined by solid state NMR
✍ David Apperley; Michael North; Robert B. Stokoe πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 188 KB

## The solid state conformation of the amorphous catalyst cyclo-[(S)-His-(S)-Phe] is determined by a combination of solid state tH and 13C NMR techniques. The results provide strong evidence in support of the previously proposed mechanism for the asymmetric addition of HCN to aldehydes catalysed b