✦ LIBER ✦

Difluorocarbene Chemistry: A Simple Transformation of 3,3-gem-Difluorocyclopropenes to Cyclopropenones†

✍ Scribed by Zhan-Ling Cheng; Qing-Yun Chen

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 93 KB
Volume: 24
Category: Article
ISSN: 0256-7660
DOI: 10.1002/cjoc.200690227

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The cycloaddition reactions of α‐acetyoxyl propynes with difluorocarbene, generated from the decomposition of FSO~2~CF~2~CO~2~SiMe~3~ in DG in the presence of 10% of NaF at 120 °C gave readily α‐acetyoxyl gem‐difluorocyclopropenes. When these fluorinated compounds were hydrolyzed under alkaline condition at 0 °C, α‐hydroxyl cyclopropenones were produced predominantly whereas treated with catalytic amounts of BF~3~·Et~2~O in Et~2~O, α‐acetyoxyl cyclopropenones were obtained.

📜 SIMILAR VOLUMES

Difluorocarbene Chemistry: A Simple Tran

Difluorocarbene Chemistry: A Simple Transformation of 3,3-gem-Difluorocyclopropenes to Cyclopropenones.

✍ Zhan-Ling Cheng; Qing-Yun Chen 📂 Article 📅 2007 🏛 John Wiley and Sons ⚖ 29 KB

Radical-Based Transformation of Vicinal

Radical-Based Transformation of Vicinal Diols to Olefins via Thioxocarbamate Derivatives: A Simple Approach to 2′,3′-Didehydro-2′,3′-dideoxynucleosides.

✍ Makoto Oba; Mitsuteru Suyama; Atsushi Shimamura; Kozaburo Nishiyama 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 126 KB 👁 2 views

A Simple Approach to 2',3'-Didehydro-2',3'-dideoxynucleosides. -Radical deoxygenation of bis-O-thioxocarbamates prepared from vicinal diols and phenyl isothiocyanate results

Radical-based transformation of vicinal

Radical-based transformation of vicinal diols to olefins via thioxocarbamate derivatives: a simple approach to 2′,3′-didehydro-2′,3′-dideoxynucleosides

✍ Makoto Oba; Mitsuteru Suyama; Atsushi Shimamura; Kozaburo Nishiyama 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 161 KB