✦ LIBER ✦

The reaction of cyclic enol ethers with arenesulfonyl azides. A new ring contraction reaction. Ring expansion and ring contraction reactions by means of diazonium betaines. II.

✍ Scribed by Ronald A. Wohl

Publisher: Elsevier Science
Year: 1973
Tongue: French
Weight: 194 KB
Volume: 14
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)96332-4

No coin nor oath required. For personal study only.

✦ Synopsis

We would like to report a new general ring contraction reaction according to the following scheme (eq. l(a),R = ArSO,): The enol ether la derived from a cyclic ketone is reacted with a suitable aside leading via an intermediate unstable 6'-triazoline & to the ring-contracted imidate ester 3a.

📜 SIMILAR VOLUMES

The ring contraction of cyclic trimethyl

The ring contraction of cyclic trimethylsilyl enol ethers with arenesulfonyl azides. Ring expansion and ring contraction reactions by means of diazonium betaines. III [1]. Preliminary communication

✍ Ronald A. Wohl 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 German ⚖ 145 KB 👁 1 views

A novel reaction for the functionalizati

A novel reaction for the functionalization of epoxy resins: New regio- and chemoselective ring-opening of epoxides with aryl silyl ether catalyzed by cesium fluoride

✍ Yoko Nambu; Takeshi Endo 📂 Article 📅 1990 🏛 Elsevier Science 🌐 French ⚖ 238 KB

By use of cesium fluoride as a catalyst, aryl or alkyl glycidyl ethers were ring-opened by aryl trimethylsilyl ether to produce O-protected aryloxyhydrins with a quantitative regioselectivity for the first time. Alkyl silyl ether was ineffective for this ring-opening. Hy the regioselective ring-ope

ChemInform Abstract: Nucleosides and Nuc

ChemInform Abstract: Nucleosides and Nucleotides. Part 191. Ring Expansion Reaction of 1-[2,3,5-Tri-O-TBS-4α-formyl-β-D-ribo-pentofuranosyl]uracil by Treating with (Methylene)triphenylphosphorane to Give a New Nucleoside Containing Dihydrooxepine Ring at the Sugar Moiety.

✍ Makoto Nomura; Kanji Endo; Satoshi Shuto; Akira Matsuda 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 35 KB 👁 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 “Full Text” option. The original article is trackable v