237403-23-5Relevant academic research and scientific papers
Capture of in situ generated diazo compounds or copper carbenoids by triphenylphosphine: Selective synthesis of trans-alkenes and unsymmetric azines via reaction of aldehydes with ketone-derived N-tosylhydrazones
Sha, Qiang,Ling, Yifei,Wang, Wenyong,Wei, Yunyang
supporting information, p. 2145 - 2150 (2013/10/01)
Copper(II) acetylacetonate-catalyzed Wittig olefination reactions of aldehydes with ketone-derived N-tosylhydrazones are reported. A series of tosylhydrazones was investigated and our results showed that the carbon number of the alkyl chain influences the E-selecivity of the alkenes greatly. Alkenes could be obtained in moderate yields and excellent E-selectivity when the carbon numbers were up to two. Under metal-free conditions, triphenylphosphine was able to capture the in situ generated diazo compounds and the corresponding unsymmetrical azines were formed in good yields.
An expeditious and solvent free synthesis of azine derivatives using sulfated anatase-titania as a novel solid acid catalyst
Krishnakumar,Swaminathan
experimental part, p. 50 - 55 (2012/02/04)
Solid acid catalyst sulfated anatase-titania (TiO2-SO 42-) has been used for the synthesis of azine derivatives from benzophenone hydrazone and ketones/aldehydes by simple physical grinding. This sulfated titania gives an
