Spontaneous Rearrangement of a Carbene- to a Carbyne Complex: C,Cr Migration of a Sn(C6H5)3 Group

✍ Scribed by Prof. Dr. Ernst Otto Fischer; Dr. Helmut Fischer; Dr. Ulrich Schubert; Dr. Richard B. A. Pardy

• Publisher: John Wiley and Sons
• Year: 1979
• Tongue: English
• Weight: 124 KB
• Volume: 18
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/anie.197908711

✦ Synopsis

formed as intermediate; its substitution by solvent leads to (19a), (19b), or (19c). The composition of the product reflects the typical solvent effects for a solvolysis reaction. In trifluoroethanol, a solvent of high ionic strength, the highest portions of cyclization products, in acetone/water and ethanol higher portions of elimination and substitution products are found.

The reaction path leading to formation of the benzyl derivatives (20) is still unclear, but there are all the indications of this reaction sequence also involving rearrangements and reactions with participation of the triple bond.