𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Highly stereoselective synthesis of optically active oxazolinyl oxiranes from azaenolates of a chiral 2-chloromethyloxazoline

✍ Scribed by Saverio Florio; Vito Capriati; Renzo Luisi


Publisher
Elsevier Science
Year
2000
Tongue
French
Weight
200 KB
Volume
41
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


Boron and titanium azaenolates 2 and 4, generated at 0 C and ^100 C, respectively, from the optically active chloromethyloxazoline 1, have been found to couple with aliphatic ketones in a highly diastereoselective fashion ending up with the formation of optically active oxazolinyl oxiranes 3. Less stereoselective was the reaction with aromatic ketones.


πŸ“œ SIMILAR VOLUMES


ChemInform Abstract: Highly Stereoselect
✍ Tomohiro Shibata; Kouhei Uemae; Yukio Yamamoto πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons βš– 31 KB πŸ‘ 2 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a β€œFull Text” option. The original article is trackable v

An efficient synthesis of highly optical
✍ Xue-E Fan; Min Huang; Hui Huang; Qing-Hua Chen πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons 🌐 English βš– 662 KB

## Abstract Highly optically active 4‐substituted‐2(5__H__)‐furanones 6a‐6j were obtained in good yields with __de__β©Ύ98% by the tandem Michael addition/elimination reaction of chiral 3‐bromo‐2(5__H__)‐furanone (4a), which was conveniently prepared starting from 2‐furaldehyde under mild conditions.

Synthetic studies on carbapenem antibiot
✍ Hideo Hiraia; Kozo Sawada; Matsuhiko Aratani; Masashi Hashimoto πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 French βš– 267 KB

Aldol and alkylation reactions of the chira1 4-allylazetidinone I gave 3,4-trans-azetidinones as major products, in which 10 was converted in severa1 steps to the optically active Γ³-epicarpetimycins 2. Considerable effort has been directed recently toward the total synthesis of chira1 carbapenem ant