56701-20-3Relevant academic research and scientific papers
The first enantioenriched metalated nitrile possessing macroscopic configurationat stability
Carlier, Paul R.,Zhang, Yiqun
, p. 1319 - 1322 (2007/12/29)
Figure presented Magnesium - bromine exchange on enantiopure cyclopropyl bromonitrile 5 at -100°C for 1 min followed by a D2O quench gives the deuterionitrile in 81% ee (retention); additional trapping experiments establish t1/2(rac) = 11.4 h at -100°C. These experiments provide the first glimpse into the stereochemical aspects of Mg-Br exchange. The intermediate formed is the first metalated nitrile demonstrated to possess macroscopic configurational stability.
Reactions of tosylhydrazones of benzaldehyde and benzophenone with cyanoalkenes in a basic two-phase system
Jończyk,Wlostowska,Ma?akosza
, p. 2827 - 2832 (2007/10/03)
Reaction of tosylhydrazones 1a,b with cyanoalkenes 3a,b, carried out in the presence of concentrated aq. sodium hydroxide in dioxane, afforded either cyanocyclopropanes 5, 9 or pyrazoles 13, 14 and 16, 17. The process takes place via generation of diazocompounds 2a,b from 1a,b their [3+2] cycloaddition to 3a,b with the formation of unstable pyrazolines 4, further fate of which depends on the structure of R1 and R2 substituents.
Electrochemical Oxidation of Benzophenone Hydrazones
Chiba, Toshiro,Okimoto, Mitsuhiro,Nagai, Hiroshi,Takata, Yoshiyuki
, p. 2968 - 2972 (2007/10/02)
The anodic oxidation of benzophenone hydrazones (1) was found to give several products, depending upon the electrolysis conditions employed such as electrode material, temperature, and electrolyte composition.For example, the oxidation using a platinum anode at room temperature in LiClO4-MeCN afforded exclusively benzophenone azines (2), whereas in NaOMe-MeOH benzophenone dimethyl acetals (3) were formed as the main products.On the other hand, the oxidation using a graphite anode in refluxing MeOH containing NaOMe gave diphenylmethyl methyl ethers (4), along with diphenylmethanes (5).When the analogous electrolysis was conducted in the presence of methacrylic acid derivatives, corresponding diphenylcyclopropanes (7) were obtained in relatively high yields.
