Titanocene(II)-promoted desulfurizative tertiary alkylation of 1,3-bis(phenylthio)alk-1-enes and β,γ-unsaturated thioacetals

Autor: Naoki Nozaki, Takeshi Takeda, Naoko Saeki, Tooru Fujiwara
Rok vydání: 1999
Předmět:
Zdroj: Tetrahedron Letters. 40:5353-5356
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(99)00975-2
Popis: The desulfurization of 1,3-bis(phenylthio)alk-1-enes with the low valent titanium species Cp 2 Ti[P(OEt) 3 ] 2 and subsequent reaction with tert -alkyl chlorides gave the terminal olefins regioselectively. The similar reactions also took place when β,γ-unsaturated thioacetals were treated successively with the titanocene(II) species and tert -alkyl chlorides. It was suggested that the present reactions proceeded via the formation of ( E )-vinyltitanium intermediate.
Databáze: OpenAIRE