Facile and Efficient Method for the Debromination of<i>vic</i>-Dibromides to Alkenes with BiCl<sub>3</sub>/Ga System
作者:Byung Woo Yoo、Seo Hee Kim、Young Kwang Park
DOI:10.1080/00397911.2010.542568
日期:2012.6
Abstract BiCl3/Ga was found to be a mild, efficient, and chemoselective system for the debromination of a series of functionally and structurally various vic-dibromides. A broad range of functional groups (ester, carboxy, aldehyde, methoxy, chloro, and ketone) was tolerated under the reaction conditions and only trans olefins were obtained in good yields. GRAPHICAL ABSTRACT
Rapid and Efficient Debromination of vic-Dibromides with VCl<sub>3</sub>/Indium System
作者:Woo Yoo, Byung、Yeon Park, Jee、Jong Shin, Hyo
DOI:10.5012/jkcs.2018.62.4.275
日期:——
The $VCl_3$/In system was found to be a new protocol for debromination of a variety of vic-dibromides to the corresponding alkenes in high yields with short reaction times under mild conditions. This new methodology is highly chemoselective, tolerating several functional groups such as chloro, bromo, fluoro, keto, ester, carboxyl, and methoxy groups.
Dehalogenation of vicinal dihalo compounds by 1,1′-bis(trimethylsilyl)-1<i>H</i>,1′<i>H</i>-4,4′-bipyridinylidene for giving alkenes and alkynes in a salt-free manner
transition metal-free dehalogenation of vicinal dihalo compounds by 1,1′-bis(trimethylsilyl)-1H,1′H-4,4′-bipyridinylidene (1) under mild conditions, in which trimethylsilyl halide and 4,4′-bipyridine were generated as byproducts. The synthetic protocol for this dehalogenation reaction was effective for a wide scope of dibromo compounds as substrates while keeping the various functional groups intact. Furthermore
One-Pot Strategy for Thiazoline Synthesis from Alkenes and Thioamides
作者:Nur-E Alom、Fan Wu、Wei Li
DOI:10.1021/acs.orglett.7b00079
日期:2017.2.17
convenient synthesis of a privileged pharmaceutical motif, thiazoline is accomplished. This reaction utilizes simple and readily available alkene and thioamide substrates in an intermolecular fashion via a simple one-pot procedure. A wide range of functional groups is tolerated, and the thiazoline product has been further utilized for the synthesis of the corresponding β-aminothiol and thiazole from routine