详细信息
文献类型:期刊文献
中文题名:2-(1-H-四唑)-4'-甲基联苯的合成
英文题名:Synthesis of 5-(4'-Methyl-[1,1'-biphenyl]-2-yl)-1H-tetrazole
作者:汪家宏[1];沈叶楠[1];龙中柱[2];张程亮[2];王巧纯[1]
机构:[1]华东理工大学精细化工研究所结构可控先进功能材料及其制备教育部重点实验室,上海200237;[2]启东东岳药业有限公司,江苏启东226200
年份:2015
卷号:32
期号:5
起止页码:598
中文期刊名:精细化工
外文期刊名:Fine Chemicals
收录:CSTPCD;;Scopus;北大核心:【北大核心2014】;CSCD:【CSCD2015_2016】;
基金:江苏省企业院士工作站(BM2013038)~~
语种:中文
中文关键词:2-(1-H-四唑)-4'-甲基联苯;沙坦联苯;四氮唑;精细化工中间体
外文关键词:5 - ( 4 '-methyl- [ 1,1 '-biphenyl ] -2-yl ) -1H-tetrazole ; 2-cyano-4 '-methylbiphenyl ; tetrazole ;fine chemical intermediates
摘要:以2-氰基-4'-甲基联苯(Ⅱ)为原料,与氨基钠反应得到2-脒基-4'-甲基联苯(Ⅲ),该化合物与水合肼发生取代反应得到4'-甲基-[1,1'-联苯]-2-甲酰胺酰肼(Ⅳ),最后在酸性条件下与亚硝酸钠发生闭环反应得到2-(1-H-四唑)-4'-甲基联苯(Ⅰ),总收率达到81%,其结构经1HNMR和MS确证。
5- ( 4'-Methyl- [ 1,1 '-biphenyl ] -2-yl ) -1H-tetrazole was synthesized from 4'-methyl- [ 1,1 '- biphenyl ]-2-carbonitrile as the starting material in a total yield of 81%. 4'-Methyl-[ 1,1 '-biphenyl ]-2- carboximidamide ( m ) was firstly obtained by the addition of 4'-methyl-[ 1,1 '-biphenyl ]-2-carbonitrile with sodium amide in toluene. The subsequent substitution reaction of m with hydrazine hydrate resulted in the formation of 4'-methyl- [ 1,1 '-biphenyl ] -2-earboximidhydrazide ( IV ), and the final acidic cyclization of IV with sodium nitrite gave the title compound 5- ( 4'-methyl- [ 1,1 '-biphenyl ] -2- yl)-lH-tetrazole( I ),whose structure was characterized by means of 1HNMR and MS.
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