中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1,10-二溴癸烷 | 1,10-dibromodecane | 4101-68-2 | C10H20Br2 | 300.077 |
1,6-二溴己烷 | 1 ,6-dibromohexane | 629-03-8 | C6H12Br2 | 243.969 |
11-溴-1-十一烯 | 1-undecen-11-ylbromide | 7766-50-9 | C11H21Br | 233.192 |
1,5-二溴戊烷 | 1,5-dibromo-pentane | 111-24-0 | C5H10Br2 | 229.942 |
6-溴正己醇 | 1-bromo-6-hexanol | 4286-55-9 | C6H13BrO | 181.073 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1,38-dibromooctatriacontane | 102436-01-1 | C38H76Br2 | 692.829 |
—— | 20-bromo-eicos-1-ene | 811794-49-7 | C20H39Br | 359.434 |
20-溴-1-二十烷醇 | 20-bromoeicosane-1-ol | 92002-48-7 | C20H41BrO | 377.449 |
—— | 38-bromooctatriacont-1-ene | 1315070-40-6 | C38H75Br | 611.917 |
The first successful preparation of ω,ω′-dibromides from the electrolyses of a series of ω-bromocarboxylic acids, Br(CH2)nCOOH (n = 5 to n = 11), is reported. Under conditions of fairly low temperature and current density, yields from 54 to 71% of these dibromides were obtained.The electrolysis of 11-bromoundecanoic acid is discussed as an example of how a small change in experimental conditions can produce a considerable change in the products of reaction. At 50°, the product was mainly 1,20-dibromoeicosane, whereas at 65° the products were mainly the esters methyl 11-bromoundecanoate and methyl 11-methoxyundecanoate.