๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Ring opening of cyclic anhydrides: Synthesis of achiral half-esters using Lewis acids

โœ Scribed by Gowravaram Sabitha; R. Srividya; J.S. Yadav

Book ID
108379292
Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
233 KB
Volume
55
Category
Article
ISSN
0040-4020

No coin nor oath required. For personal study only.

๐Ÿ“œ SIMILAR VOLUMES

Ring opening of cyclic ethers by sulfuri
Ring opening of cyclic ethers by sulfuric acid - acetic anhydride
โœ Yasuhiro Tanoue; Moritsugu Hamada; Norihisa Kai; Takeshi Nagai; Kazunori Sakata; ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 202 KB

## Abstract Cyclic ethers such as tetrahydrofuran or tetrahydropyran were easily cleaved at room temperature by sulfuric acid โ€ acetic anhydride providing the corresponding diacetoxyalkanes in good yield. The ring opening was applicable to saturated cyclic ethers, regardless of the presence of subs

Asymmetric ring opening of cyclic acid a
Asymmetric ring opening of cyclic acid anhydrides with lipase in organic solvents
โœ Kazuyoshi Yamamoto; Takaaki Nishioka; Jun'ichi Oda; Yukio Yamamoto ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 268 KB

A lipase (Amano P) catalyzed the asymmetric ring opening of 3-substituted glutaric anhydride with l-butanol to afford the E half esters having 60-91%ee. Asymmetric synthesis and kinetically resolution with enzymes has been well appreciated as an efficient strategy to prepare optically active comp0u