Effect of the structure of alkoxy radicals on the mass-spectral fragmentation of dialkyl alkylphosphonatesGeneral ChemistryAlkoxy RadicalDecylMethylphosphonatePhosphoric Acid EsterBasic fragmentation reaction of dialkyl alkylphosphinates under the conditions of electron ionization proceeds in two steps. In the ...
Compounds of formula (I), wherein R is (a) a hydrogen atom, (b) an alkyl radical, (c) an allyl radical, (d) a phenyl radical, (e) a 2-or-3-pyridyl alkyl radical, (f) a 2-quinolylalkyl radical, (g) a naphthylalkyl radical, (h) a cycloalky... ALOUP JEAN-CLAUDE,AUDIAU ...
FTIR-smog chamber systems were used to show that the atmospheric fate of the alkoxy radical (c-C3H5O3)O(.) is decomposition via C-O bond scission leading to the formation of H(O)COCH2OC(O)H (methylene glycol diformate). The IR spectrum of the peroxynitrate (c-C3H5O3)O2NO2 is ...
a 1H NMR with the H2O as internal reference located at up-field for identifying the methyl structure of 1a (black), reaction mixture (red) and methanol (blue). b Experiments in the presence of different amount of TEMPO as radical scavenger. Full size image Our mechanistic insights regarding ...
Teoh WY, Scott JA, Amal R (2012) Progress in heterogeneous photocatalysis: From classical radical chemistry to engineering nanomaterials and solar reactors. J Phys Chem Lett 3(5):629–639. https://doi.org/10.1021/jz3000646 Article CAS Google Scholar Ochiai T, Fujishima A (2012) Photoelectroch...
the formation of desired β-chloro ester product5awas observed when Ir(ppy)3was employed. A better result was obtained when the reaction was performed at 30 °C. By raising the equivalents of photosensitizer Ir(ppy)3and alkoxycabonyl radical source2a, the yield of this reaction was increase...
Advantageous asymmetrically substituted s-triazine derivatives within the meaning of this embodiment are, for example, those described in EP-A-570 838, whose chemical structure is represented by the generic formulawhere R is a branched or unbranched C1-C18-alkyl radical, a C5-C12-cycloalkyl ...
Cooper et al., “Tropospheric Lifetimes of Potential CFC Replacements: Rate Coefficients for Reaction with the Hydroxyl Radical,” Atmospheric Environment, vol. 26A, No. 7, pp. 1331-1334 (1992). Ellis, “Cleaning and Contamination of Electronics Components and Assemblies,” Electrochemical Publicati...
Using pulse radiolysis with optical detection it is shown that the formylmethyl radical CH/sub 2/CHO reacts with phenolated XC/sub 6/H/sub 4//sup -/(X = H,... Steen,Steenken - 《Cheminform》 被引量: 0发表: 1979年 Copper-catalyzed asymmetric addition of arylboronates to isatins: a...
1. A compound of the formula ##STR13## wherein R is C1-6 alkyl, R1is a straight chain C10-24 hydrocarbon radical containing at least one ethyleneic or acetylenic unsaturation; and each R3is individually methyl or ethyl. 2. A compound according to claim 1 in which R3is methyl. ...