遵照规定使用和储存,则不会分解。
3-溴-4-羟基苯甲醛呈现白色或浅黄色结晶(粉末)状,可溶于冰乙酸、丙酮和甲醇等有机溶剂,微溶于水。
用途3-溴-4-羟基苯甲醛是一种重要的化工原料,广泛用于合成香兰素和甲氧苄胺嘧啶等化合物的重要中间体。
制备方法将对羟基苯甲醛溶解在醇类溶剂中,在搅拌条件下进行反应一段时间。随后采用反应精馏的方式脱水,并进行缩醛反应,最终得到对羟基苯甲缩醛的醇溶液。常用的醇包括C1~C10烷基醇,如乙醇、叔丁醇或叔戊醇等单一或混合使用;溶剂的摩尔用量应为对羟基苯甲醛的20~40倍,优选30~40倍。缩醛反应的最佳温度范围是20~40℃,更优选在20~30℃之间进行,并且需确保缩醛反应体系中的含水量低于0.5%(质量浓度),以停止反应。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-溴-4-甲基苯酚 | 2-bromo-p-cresol | 6627-55-0 | C7H7BrO | 187.036 |
3-溴-4-甲氧基苯甲醛 | 3-bromo-4-methoxybenzylaldehyde | 34841-06-0 | C8H7BrO2 | 215.046 |
—— | 3-bromo-4-(methoxymethoxy)benzaldehyde | 162269-90-1 | C9H9BrO3 | 245.073 |
3-溴-4-羟基苯甲醇 | 2-bromo-4-(hydroxymethyl)phenol | 29922-56-3 | C7H7BrO2 | 203.035 |
3-溴-4-羟基氰苯 | 3-bromo-4-hydroxybenzonitrile | 2315-86-8 | C7H4BrNO | 198.019 |
对羟基苯甲醛 | 4-hydroxy-benzaldehyde | 123-08-0 | C7H6O2 | 122.123 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
3,5-二溴-4-羟基苯甲醛 | 3,5-dibromo-4-hydroxybenzaldehyde | 2973-77-5 | C7H4Br2O2 | 279.916 |
3-溴-4-甲氧基苯甲醛 | 3-bromo-4-methoxybenzylaldehyde | 34841-06-0 | C8H7BrO2 | 215.046 |
3-溴-4-羟基苯甲酸 | 3-bromo-4-hydroxy-benzoic acid | 14348-41-5 | C7H5BrO3 | 217.019 |
3-溴-4-乙氧基苯甲醛 | 3-bromo-4-ethoxybenzaldehyde | 108373-05-3 | C9H9BrO2 | 229.073 |
—— | 2-bromo-4-vinylphenol | —— | C8H7BrO | 199.047 |
—— | 2-bromo-4-(bromomethyl)phenol | 52703-21-6 | C7H6Br2O | 265.932 |
—— | 3-bromo-4-(methoxymethoxy)benzaldehyde | 162269-90-1 | C9H9BrO3 | 245.073 |
3-溴-4-异丙氧基苯甲醛 | 3-bromo-4-O-isopropylbenzaldehyde | 191602-84-3 | C10H11BrO2 | 243.1 |
3-溴-4-丙氧基苯甲醛 | 3-bromo-4-propoxybenzaldehyde | 865138-64-3 | C10H11BrO2 | 243.1 |
3-溴-4-羟基苯甲醇 | 2-bromo-4-(hydroxymethyl)phenol | 29922-56-3 | C7H7BrO2 | 203.035 |
—— | 4-(allyloxy)-3-bromobenzaldehyde | 724746-23-0 | C10H9BrO2 | 241.084 |
—— | 3-bromo-4-(difluoromethoxy)benzaldehyde | 1155878-02-6 | C8H5BrF2O2 | 251.027 |
3-溴-4-(2-丙炔-1-基氧基)苯甲醛 | 3-bromo-4-propargyloxybenzaldehyde | 428487-30-3 | C10H7BrO2 | 239.068 |
3-溴-4-羟基氰苯 | 3-bromo-4-hydroxybenzonitrile | 2315-86-8 | C7H4BrNO | 198.019 |
3-溴-4-羟基苄胺 | 3-Brom-4-hydroxybenzylamin | 63491-88-3 | C7H8BrNO | 202.051 |
—— | 3-bromo-4-butoxybenzaldehyde | —— | C11H13BrO2 | 257.127 |
3-溴-4-(2-甲氧基乙氧基)苯甲醛 | 3-bromo-4-(2-methoxy-ethoxy)-benzaldehyde | 915369-06-1 | C10H11BrO3 | 259.1 |
—— | 3-bromo-4-iso-butoxybenzaldehyde | 946743-11-9 | C11H13BrO2 | 257.127 |
—— | 3-bromo-4-((2-methoxyethoxy)methoxy)benzaldehyde | 488713-93-5 | C11H13BrO4 | 289.126 |
—— | 3-bromo-4-hexyloxybenzaldehyde | 43192-29-6 | C13H17BrO2 | 285.181 |
—— | 2-bromo-4-formylphenyl acetate | 74849-11-9 | C9H7BrO3 | 243.057 |
2-溴-4-(甲氧基甲基)苯酚 | 2-bromo-4-(methoxymethyl)phenol | 71119-01-2 | C8H9BrO2 | 217.062 |
—— | 3-bromo-4-(2-(dimethylamino)ethoxy)benzaldehyde | 938294-99-6 | C11H14BrNO2 | 272.142 |
—— | 3-bromo-4-sec-butoxybenzaldehyde | —— | C11H13BrO2 | 257.127 |
—— | 3-bromo-4-heptyloxybenzaldehyde | 100792-27-6 | C14H19BrO2 | 299.208 |
—— | 3-bromo-4-octyloxybenzaldehyde | 101500-22-5 | C15H21BrO2 | 313.235 |
—— | (2-BROMO-4-FORMYLPHENOXY)ACETIC ACID | —— | C9H7BrO4 | 259.056 |
—— | 3-Bromo-4-(cyclopropylmethoxy)benzaldehyde | 628711-48-8 | C11H11BrO2 | 255.111 |
4-(苄氧基)-3-溴苯甲醛 | 4-benzyloxy-3-bromobenzaldehyde | 69455-12-5 | C14H11BrO2 | 291.144 |
3-溴-4-羟基苯甲醛肟 | 3-bromo-4-hydroxybenzaldehyde oxime | 938300-85-7 | C7H6BrNO2 | 216.034 |
—— | trans-2-bromo-4-(3-hydroxypropen-1-yl)phenol | 74568-54-0 | C9H9BrO2 | 229.073 |
—— | 4-(4-methoxybenzyloxy)-3-bromobenzaldehyde | 937678-86-9 | C15H13BrO3 | 321.17 |
—— | 4-benzyl-2-bromophenol | 155291-43-3 | C13H11BrO | 263.134 |
—— | 4,4'-((1E,1'E)-(1,4-phenylene)bis(ethene-2,1-diyl))bis(2-bromophenol) | 1443299-45-3 | C22H16Br2O2 | 472.176 |
—— | 3-bromo-4-(4-methylbenzyloxy)benzaldehyde | 428469-68-5 | C15H13BrO2 | 305.171 |
—— | ethyl 2-(2-bromo-4-formylphenoxy)acetate | —— | C11H11BrO4 | 287.11 |
—— | 3-bromo-4-(2-cyclohexylethoxy)benzaldehyde | 1234323-01-3 | C15H19BrO2 | 311.219 |
3-溴-4-(2-吗啉代乙氧基)苯甲醛 | 3-bromo-4-(2-morpholinoethoxy)benzaldehyde | 258831-64-0 | C13H16BrNO3 | 314.179 |
—— | 3-bromo-4-(4-fluorobenzyloxy)benzaldehyde | 428484-82-6 | C14H10BrFO2 | 309.135 |
—— | 3-bromo-4-((4-chlorobenzyl)oxy)benzaldehyde | —— | C14H10BrClO2 | 325.589 |
—— | 3-bromo-4-hydroxy cinnamic acid | 119405-32-2 | C9H7BrO3 | 243.057 |
—— | (E)-3-(3-bromo-4-hydroxyphenyl)acrylic acid | 67808-77-9 | C9H7BrO3 | 243.057 |
—— | 3-bromo-4-cyclohexylmethyloxy Benzaldehyde | 222627-68-1 | C14H17BrO2 | 297.192 |
—— | 3-bromo-4-cyclohexyloxybenzaldehyde | 1289091-60-6 | C13H15BrO2 | 283.165 |
—— | 3-bromo-4-(5-phenyl-pentyloxy)-benzaldehyde | 1309380-25-3 | C18H19BrO2 | 347.252 |
—— | 3-bromo-4-((tert-butyldimethylsilyl)oxy)benzaldehyde | 676596-97-7 | C13H19BrO2Si | 315.282 |
对羟基苯甲醛 | 4-hydroxy-benzaldehyde | 123-08-0 | C7H6O2 | 122.123 |
—— | (E)-2-bromo-1-methoxy-4-styrylbenzene | —— | C15H13BrO | 289.172 |
(2-溴-4-甲酰基-苯氧基)-乙酸叔丁酯 | Tert-butyl 2-(2-bromo-4-formylphenoxy)acetate | 850349-12-1 | C13H15BrO4 | 315.16 |
—— | 5-[(E)-2-(3-bromo-4-hydroxyphenyl)ethenyl]benzene-1,3-diol | —— | C14H11BrO3 | 307.144 |
—— | 3-bromo-4-(triisopropylsilyloxy)benzaldehyde | 1000603-83-7 | C16H25BrO2Si | 357.363 |
—— | 2-bromo-4-[(3-methyl-butylamino)-methyl]-phenol | 865539-48-6 | C12H18BrNO | 272.185 |
—— | 3-bromo-4-((3-fluorobenzyl)oxy)benzaldehyde | —— | C14H10BrFO2 | 309.135 |