A NEW GENERAL-METHOD FOR THE GENERATION OF (ALK-1-YNYL)HALOCARBENES BY BASE SOLVOLYSIS OF 3-SUBSTITUTED 1,1,1,3-TETRAHALOPROPANES

Citation
Kn. Shavrin et al., A NEW GENERAL-METHOD FOR THE GENERATION OF (ALK-1-YNYL)HALOCARBENES BY BASE SOLVOLYSIS OF 3-SUBSTITUTED 1,1,1,3-TETRAHALOPROPANES, Mendeleev communications, (4), 1997, pp. 144-145
Citations number
5
Categorie Soggetti
Chemistry
Journal title
ISSN journal
09599436
Issue
4
Year of publication
1997
Pages
144 - 145
Database
ISI
SICI code
0959-9436(1997):4<144:ANGFTG>2.0.ZU;2-Y
Abstract
The (alk-1-ynyl)halocarbenes 4 have been generated from S-substituted 1,1,1,3-tetrahalopropanes 1 via elimination of three molecules of hydr ogen halide by treatment with (BuOK)-O-t or with alkali metal hydroxid es under phase-transfer catalysis conditions and have been trapped by alkenes to form 1-(alk-1-ynyl)-1-halocyclopropanes 5 in 40-70% yields.