以五氯化磷和N,N′-二苄基草酰胺为原料,在微波辐射下合成5-氯-1-苄基-2-苯基咪唑,产物结构经1 H NMR、IR、MS及元素分析确证。同时研究了微波辐射功率、辐射时间、反应物投料比对反应的影响。结果表明:五氯化磷∶N,N′-二苄基草酰胺的...以五氯化磷和N,N′-二苄基草酰胺为原料,在微波辐射下合成5-氯-1-苄基-2-苯基咪唑,产物结构经1 H NMR、IR、MS及元素分析确证。同时研究了微波辐射功率、辐射时间、反应物投料比对反应的影响。结果表明:五氯化磷∶N,N′-二苄基草酰胺的投料比为2∶1,辐射功率为300W,辐射时间为8min时,收率最高为75.4%。展开更多
A new method of synthesis of 2 methyl 1 benzyl benzimidazole starting from 2 methyl benzimdazole and benzyl bromide was reported with KF Al 2O 3 as catlyst and DMF as solution.The influence of some reaction condition ...A new method of synthesis of 2 methyl 1 benzyl benzimidazole starting from 2 methyl benzimdazole and benzyl bromide was reported with KF Al 2O 3 as catlyst and DMF as solution.The influence of some reaction condition on yield was also tested,and the optimum conditions were obtained,the molecular ratio of catlyst and 2 methyl benzimdazole and benzyl bromide 1∶1∶1 05,the reaction temperature 20-25,and the yield 70 8%.展开更多
文摘以五氯化磷和N,N′-二苄基草酰胺为原料,在微波辐射下合成5-氯-1-苄基-2-苯基咪唑,产物结构经1 H NMR、IR、MS及元素分析确证。同时研究了微波辐射功率、辐射时间、反应物投料比对反应的影响。结果表明:五氯化磷∶N,N′-二苄基草酰胺的投料比为2∶1,辐射功率为300W,辐射时间为8min时,收率最高为75.4%。
文摘A new method of synthesis of 2 methyl 1 benzyl benzimidazole starting from 2 methyl benzimdazole and benzyl bromide was reported with KF Al 2O 3 as catlyst and DMF as solution.The influence of some reaction condition on yield was also tested,and the optimum conditions were obtained,the molecular ratio of catlyst and 2 methyl benzimdazole and benzyl bromide 1∶1∶1 05,the reaction temperature 20-25,and the yield 70 8%.