Formation of stilbenes and spiro-oxetanes in the reactions of phenyldiazomethanes with chloranil

✍ Scribed by Takumi Oshima; Toshikazu Nagai

• Publisher: Elsevier Science
• Year: 1979
• Tongue: French
• Weight: 184 KB
• Volume: 20
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)86417-0

✦ Synopsis

The reactions of several phenyldiazomethanes with chloranil gave stilbenes and Spiro-oxetanes at 20°C. Stilbenes were major products and the thermodynamically less stable cis-isomers prevailed about 2 to 3 times more than trans-ones depending on the solvents and the substituents of phenyldiazomethanes.