Benzene ring substituted benzimidazole-2-carbamate derivative represented by the formula: (I) where R is a lower alkyl group having 1 to 4 carbon atoms; is a 5, 6, 7 or a membered heterocyclic ring containing 1 or 2 hetero atoms; the substitution being at the 5(6)-position; and the ...
Benzene ring substituted benzimidazole-2-carbamate derivatives represented by the formula: ##STR1## where R is a lower alkyl group having 1 to 4 carbon atoms; and R.sup.1 is a fused, bicyclic heterocyclic ring moiety. The R.sup.1 S-substitution is at the 5(6)-position. The compounds ...
Product Description TP510 Curing Agent for Epoxy Powder Coatings Description Substituted dicyandiamide, also known as modified dicyandiamide, is a grafted benzene ring on dicyandiamide. Compared with dicyandiamide, TP510 has better compatibility, leveling and low temperature ...
In order to identify the effect of EDGs and EWGs on the reaction, we employed various aromatic aldehyde derivatives and observed that aldehydes containing the EWGs provided the better results than with the ones having EDGs at the para-position of the benzene ring. Moreover, we observed that ...
Electronic Effect of Substituents on the Hydrodesulfurization of Ring-Substituted Benzenethiolsdoi:10.1246/nikkashi.1987.1397In order to clarify the effect of ... K Konuma,H Hasegawa,K Itabashi - 《Nippon Kagaku Kaishi》 被引量: 0发表: 1987年 Electronic effect of substituents on the hydrodesulfurizat...
Again, compared to IEICO, the fluorination on the 5,6-positions of the fused benzene of the IC unit decreases the FWHM value (2143 vs. 2861 cm−1). Density functional theory (DFT) calculations indicate that the 3-carbon of the bridged thiophene is involved in the HOMO, while it is...
13C and 19F NMR substituent chemical shifts (SCS) of some bridgehead-substituted phenyl- and fluorophenylbicyclo [2.2.2] octyltricarbonylchromium(O) derivatives: nature of aryl 19F NMR polar field effects in the Cr(CO)3-complexed benzene ring system ...
Benzene ring substituted benzimidazole-2-carbamate derivatives represented by the formula: ##SPC1## Where R is a lower alkyl group having 1 to 4 carbon atoms; R1is --SR5or --OR5; and R5is aryl. The R1substitution is at the 5(6)-position. ...
Benzene ring substituted benzimidazole-2-carbamate derivatives represented by the formula: ##STR1## where R is a lower alkyl group having 1 to 4 carbon atoms; R' is lower alkyl having 1 to 6 carbon atoms, cycloalkyl having 3 to 7 carbon atoms, lower alkenyl or lower alkynyl having 3 to...
A solution of 33.5 g of 9α-bromo-11β-fluoro-15β,16β-methyleneandrost-4-ene-3,17-dione in 480 ml of benzene was stirred with 42 ml of tributyltin hydride and 416 mg of azobisisobutyronitrile at 80° C. for 30 min. The mixture was concentrated in vacua, and the residue was chrom...