Detail of "1126-79-0"

Reference

Synthesis and application of the triphase catalyst - resin of quaternary ammonium salt

Synthesis and application of the triphase catalyst - resin of quaternary ammonium salt. Zhen, Guorong; Wu, Chaoyuan; Xu, Chengbai; Zhang, Weidong; Luo, Xiaoqiu (Dep. Chem., Southwest Teac. Univ., Chungking, Peop. Rep. China).Several substances like 2465-56-7 may be metioned in this study. Xinan Shifan Daxue Xuebao, Ziran Kexueban, (3), 42-6 (Chinese) 1986. CODEN: XSDKEM. DOCUMENT TYPE: Journal CA Section: 45 (Industrial Organic Chemicals, Leather, Fats, and Waxes) Section cross-reference(s): 23, 37 Crosslinked polystyrene was treated with dibromoethane followed by Bu3N to give a triphase catalyst. The catalytic activity of the catalyst was studied in carbene [2465-56-7] insertion reaction with trichloroacetic acid [76-03-9], bromoalkane reaction with KI, bromohexane [25495-91-4] reaction with KCN, and KOPh [100-67-4] reaction with BuBr [109-65-9]. The catalyst retained its activity after 4 repeated usages in the prepn. of Bu Ph ether [1126-79-0]. .

Chemical consequences of electron impact

Chemical consequences of electron impact. Neutral C4H8 fragments expelled from molecular ions in the gas phase. Burns, Frank B.; Morton, Thomas H. (Dep. Chem., Brown Univ., Providence, R. I., USA). J. Am. Chem. Soc., 98(23), 7308-13 (English) 1976. CODEN: JACSAT. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) An electron bombardment flow (EBFlow) reactor radiolysis of BuOPh mol. ion (I) at 8-100 eV affords C4H8 neutral products, whose yield increases sharply between 20 and 30 eV. The isomer distribution is contrasted with that from 70-eV EBFlow radiolysis of II which undergoes a facile McLafferty rearrangement. 1-Butene is the exclusive isomer from II, while 2-butenes compose nearly half the C4H8 yield from I. Neither pyrolysis nor 254-nm photolysis of I affords 2-butenes; mol. ion formation and rearrangement is the route to the C4H8 neutral products. A 70-eV EBFlow radiolysis of I-.beta.,. 934-42-9 and 1126-79-0 are also in the experiment.beta.-d2 gives a high yield of 1-butene-d2, in conformity with the proposed mechanism and with mass spectral studies that show much of the base peak arising via internal H transfer from the .gamma.-CH2 of the alkyl chain followed by expulsion of C4H8. The predominance of 1- and 2-butenes (>98% of the C4H8 yield) rules out the expulsion of methylcyclopropane as a major mass spectrometric rearrangement mechanism, and the expulsion of .bul.CH2CH2CH.bul.Me is suggested. Excited states of the mol. ion of I obsd. by He(I) photoelectron spectroscopy are assigned as precursors to this expelled neutral based on thermodn. .