Rajendran, Venugopal published the artcileUltrasound assisted dichlorocarbene addition to 1,3-bis(allyloxy)-5-methylbenzene under biphasic condition: a kinetic study, HPLC of Formula: 36437-30-6, the main research area is bis allyloxy methylbenzene dichlorocarbene phase transfer catalyst cyclopropanation kinetics.
A new multi-site phase-transfer catalyst (MPTC), viz., N,N’-dioctyl-4,4′-bipyridium dibromide containing bi-site was prepared and proved by FT-IR, 1H NMR, 13C NMR, mass and elemental anal. The enhancement of C-N+ peak intensity at 1179 cm-1 noticed in FT-IR, the agreement of m/z values, viz., 542.43 bi-site resp. with their theor. values and the percentage of C, H, N elements noticed in elemental anal. has strongly supported the presence of tri-site MPTC catalysts. Further, the presence of number of active-sites in the catalyst was again confirmed by determining their pseudo-first order rate constant for dichlorocarbene addition to 1,3-bis(allyloxy)-5-methylbenzene in the presence of ultrasonic irradiation/mech. stirring. The comparative study reveals that the kapp determined with the combination of ultrasound and mech. stirring showed more activity than with their individual effect. Further, the detailed kinetic study performed with superior di-site MPTC reveals that the kapp are dependent with the stirring speed, [substrate], [catalyst], [NaOH] and temperature Based on the kinetic results, thermodn. parameters are evaluated.
Iranian Chemical Communication published new progress about Activation enthalpy. 36437-30-6 belongs to class pyridine-derivatives, name is 1,1-Di-n-octyl-4,4-bipyridinium Dibromide, and the molecular formula is C26H42Br2N2, HPLC of Formula: 36437-30-6.