摘要:
Carboxylic acid-containing compounds are esterified by reacting at elevated temperatures with organic esters of trichloroacetic acid in the presence of an initiator.
摘要:
Active hydrogen-containing compounds are silylated by contacting with trimethylsilyl trichloroacetate at elevated temperatures in the presence of an initiator.
摘要:
Capacitors and similar electrical devices containing a dielectric liquid have superior properties when the dielectric liquid is a polyalkylated diphenyl sulfide. Particularly good dielectric properties are provided when the liquid consists essentially of the mixed isomers obtained by reacting m-xylene or similar dialkylbenzene with SCl.sub.2.
摘要:
Vicinal epoxides are prepared by decomposing a .beta.-haloalkyl carbonate of the general formula ##STR1## in the presence of a quaternary ammonium or phosphonium salt.
摘要:
Novel unsubstituted and 4-substituted, 2,6-dinitrophenyl seleninic acids, selenium halides and diselenides are described. The above-described selenium compounds are particularly useful to catalyze the oxidation of olefins to the corresponding epoxide in the presence of hydrogen peroxide.
摘要:
Various aspects disclosed herein relate to aryl substituted aminopyrimidines according to Formula 1: wherein, X1 is N or C—R3; X2 is N or C—R4 provided that X1 and X2 are not both N; R1-R7 are H, CN, CHO, —SCN, NO2, F, Cl, Br, I, substituted or unsubstituted C1-C4-alkyl, substituted or unsubstituted halo-C1-C4-alkyl, substituted or unsubstituted C1-C4-alkoxy, substituted or unsubstituted halo-C1-C4-alkoxy, substituted or unsubstituted C1-C4-thioalkyl, substituted or unsubstituted halo-C1-C4-thioalkyl, substituted or unsubstituted C3-C-7-cycloalkyl, substituted or unsubstituted C2-C4-alkenyl, C2-C4-alkynyl, substituted or unsubstituted C1-C4-acylalkyl, C1-C4-acyloxy, C1-C4 alkoxycarbonyl, C1-C4-alkoxy-amino, C1-C4-alkyl-S(O)═NH, substituted or unsubstituted aryl, substituted or unsubstituted heterocycle, wherein the substituents are one or more of the following F, Cl, Br, OH, CN, NO2, CHO, —SCN, S(O)n-C1-C4-alkyl (where n=0-2), C1-C4-alkyl, halo-C1-C4-alkyl, C1-C4-alkylamine, C1-C4-alkoxy, halo-C1-C4-alkoxy, C1-C4-thioalkyl, halo-C1-C4-thioalkyl, C1-C4-alkylacyl, C1-C4-acyloxy, C1-C4 alkoxycarbonyl, C1-C4-alkoxy-imino, hydroxy-imino; C1-C4-alkyl-S(O)═NH; and Q is a substituted or unsubstituted aryl, substituted or unsubstituted heterocycle wherein the substituents of Q are taken from R1-R7.
摘要:
4-Amino-5-fluoro-3-chloro-6-(substituted)picolinates are prepared from trifluoroacetic acid, p-methoxyaniline, a C1-C4 alkyl propiolate and a substituted methylene amine by a series of steps.
摘要:
Various aspects disclosed herein relate to aryl substituted aminopyrimidines according to Formula 1: wherein, X1 is N or C—R3; X2 is N or C—R4 provided that X1 and X2 are not both N; R1-R7 are H, CN, CHO, —SCN, NO2, F, Cl, Br, I, substituted or unsubstituted C1-C4-alkyl, substituted or unsubstituted halo-C1-C4-alkyl, substituted or unsubstituted C1-C4-alkoxy, substituted or unsubstituted halo-C1-C4-alkoxy, substituted or unsubstituted C1-C4-thioalkyl, substituted or unsubstituted halo-C1-C4-thioalkyl, substituted or unsubstituted C3-C-7-cycloalkyl, substituted or unsubstituted C2-C4-alkenyl, C2-C4-alkynyl, substituted or unsubstituted C1-C4-acylalkyl, C1-C4-acyloxy, C1-C4 alkoxycarbonyl, C1-C4-alkoxy-amino, C1-C4-alkyl-S(O)═NH, substituted or unsubstituted aryl, substituted or unsubstituted heterocycle, wherein the substituents are one or more of the following F, Cl, Br, OH, CN, NO2, CHO, —SCN, S(O)n-C1-C4-alkyl (where n=0-2), C1-C4-alkyl, halo-C1-C4-alkyl, C1-C4-alkylamine, C1-C4-alkoxy, halo-C1-C4-alkoxy, C1-C4-thioalkyl, halo-C1-C4-thioalkyl, C1-C4-alkylacyl, C1-C4-acyloxy, C1-C4 alkoxycarbonyl, C1-C4-alkoxy-imino, hydroxy-imino; C1-C4-alkyl-S(O)═NH; and Q is a substituted or unsubstituted aryl, substituted or unsubstituted heterocycle wherein the substituents of Q are taken from R1-R7