2510-73-8Relevant academic research and scientific papers
Enantioselective ring-opening reaction of meso-epoxides with ArSH catalyzed by a C2-symmetric chiral bipyridyldiol-titanium complex
Chen, Yi-Jing,Chen, Chinpiao
, p. 1313 - 1319 (2008/02/09)
This study describes a C2-symmetric ligand comprising a central bipyridine-pinene-derived core and two functionalized diphenylmethanol subunits. [8′-(Hydroxy-diphenyl-methyl)-10,10,10′,10′-tetramethy l-[5,5′]bi[6-aza-tricyclo[7.1.1.02,7/s
Crown ether catalyzed stereospecific synthesis of Z- and E-stilbenes by Wittig reaction in a solid-liquid two-phases system
Bellucci, Giuseppe,Chiappe, Cinzia,Lo Moro, Giacomo
, p. 4225 - 4228 (2007/10/03)
Potassium hydroxide and a catalytic amount of 18-crown-6 are used, in alternative to the classical Wittig conditions, to prepare very rapidly and stereoselectively Z- and E-stilbenes. In particular, the use of benzyltriphenylphosphonium iodides always leads to a complete Z- stereospecificity, while benzyldiphenylchlorophosphonium salts give a complete E-stereospecificity.
