a mixture of CHCl3 and phenolEDC/HOOBt methodepimerizationsegment condensation reactionSegment condensation reaction of sparingly soluble protected peptides proceeded smoothly in CHCl 3 -phenol mixed solvent without danger of epimerization or of significant ester formation with the carboxyl component when 1...
Segment condensation reaction of sparingly soluble protected peptides proceeded smoothly in CHCl3-phenol mixed solvent without danger of epimerization or of significant ester formationwith the carboxyl component when 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC) was employedin the presence of 3,4...
Chemoselective polycondensation of BAP monomer using HRP enzyme yielded oligophenol with sec-amine functionality on the side-chain. Effects of various factors including solvent system, reaction pH and temperature on the polycondensation were studied. Optimum polymerization process with the highest yield (...
All synthesized new complexes can catalyse the oxotransfer reaction between benzoin and dmso at 120 掳C.Ari Lehtonen and Mikael Wasberg and Reijo SillanpääPolyhedronLehtonen, A,Wasberg, M,Sillanp , R.Dioxomolybdenum (VI) and–tungsten (VI) complexes with tetradentate aminobis (phenol)s....
Segment condensation reaction of sparingly soluble protected peptides proceeded smoothly in CHCl3-phenol mixed solvent without danger of epimerization or of significant ester formationwith the carboxyl component when 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC) was employedin the presence of 3,4...
CHCl3FlavonoidThe article presents a study that investigates the effectiveness of alkylation of phenol by limonene in the preparation of terpenophenols with various structures. It offers details of the method of the study that determines chromanes and the reaction conditions of the compounds. The ...
The reaction was quenched with saturated NaHCO3 aq. and was extracted with CH2Cl2 for three times. The combined organic layer was dried over Na2SO4 and was concentrated in vacuo. The crude material was purified by silica gel column chromatography (toluene/CHCl3 = 10:1) to provide the ...
4-(Carboxymethoxy)benzoic acid methyl ester (21): in the reaction of 5 and 16 the product 21, after crystallization process, was obtained as a white fine crystals (75%); m.p. 143–145 ◦C; Rf sub = 0.52; Rf prod = 0 (CHCl3: MeOH 9:1); MS m/z (%): 211.2 (0.7) [M+...