REACTIONS PARTICULIERES DE CYANO ALKYLE SULFURES APPLICATION A L'OBTENTION DE DERIVES ACRYLIQUES

Autor: J. L. Mieloszynski, Y. Jullien, J. Y. Melwig, Daniel Paquer, M. Curci, J. C. Wilhelm
Rok vydání: 1996
Předmět:
Zdroj: Phosphorus, Sulfur, and Silicon and the Related Elements. 118:95-104
ISSN: 1563-5325
1042-6507
DOI: 10.1080/10426509608038803
Popis: The reactivity of Ph-SH with acrylic compounds permits a protection of the acrylic double bond and reaction on the protected product. In some cases (cyano alkyl acrylic compounds) a specific reaction can be observed. So action of KCN on PhS-(CH2)2-COO-(CH2)aCl [n = 2,3] gives NC-(CH2)2-COO-(CH2)a SPh [the expected compound (PhS-(CH2)2-COO-(CH2)aCN) was not isolated]. We involve a sulfonium ion as intermediate for this ‘abnormal’ reaction. When n = 6 the normal protection/deprotection reaction occurs.
Databáze: OpenAIRE