Seven derivatives of 1,3-dithiocyclohexane were prepared via the reaction o f 7 aldehydes(or ketones) with Bunte′s salt prepared from 1,3-dichloroprop ane and sodium thiosulfate. The procedure has the feature of easi...Seven derivatives of 1,3-dithiocyclohexane were prepared via the reaction o f 7 aldehydes(or ketones) with Bunte′s salt prepared from 1,3-dichloroprop ane and sodium thiosulfate. The procedure has the feature of easier operation, s horter reaction time and higher yield. The yields of seven derivatives of 1,3- dithiocyclohexane are between 58% and 75%. The optimum molar ratio of 1,3-d ichloropropane to sodium thiosulfate was 1∶1 in the preparati on of Bunte′s salt. The structures of seven derivatives were characterized by m eans of IR, 1H NMR, MS.展开更多
Both the unsupported and supported NiB amorphous alloy catalysts (NiB and NiB/TiO2) were prepared by the chemical reduction method. Their catalytic activities were tested by the hydrogenation of sulfolene. The interac...Both the unsupported and supported NiB amorphous alloy catalysts (NiB and NiB/TiO2) were prepared by the chemical reduction method. Their catalytic activities were tested by the hydrogenation of sulfolene. The interactions between the NiB alloy and TiO2 were discussed for the first time by using XRD, ICP, SEM and TEM.展开更多
文摘Seven derivatives of 1,3-dithiocyclohexane were prepared via the reaction o f 7 aldehydes(or ketones) with Bunte′s salt prepared from 1,3-dichloroprop ane and sodium thiosulfate. The procedure has the feature of easier operation, s horter reaction time and higher yield. The yields of seven derivatives of 1,3- dithiocyclohexane are between 58% and 75%. The optimum molar ratio of 1,3-d ichloropropane to sodium thiosulfate was 1∶1 in the preparati on of Bunte′s salt. The structures of seven derivatives were characterized by m eans of IR, 1H NMR, MS.
文摘Both the unsupported and supported NiB amorphous alloy catalysts (NiB and NiB/TiO2) were prepared by the chemical reduction method. Their catalytic activities were tested by the hydrogenation of sulfolene. The interactions between the NiB alloy and TiO2 were discussed for the first time by using XRD, ICP, SEM and TEM.
