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硼烷

硼烷又称硼氢化合物,是由硼和氢两种元素形成的一系列化合物的总称。简单的硼烷通常是无色且具有难闻臭味的剧毒物质,在空气中极易自燃,生成氧化硼。

随着硼原子数的增加,硼烷的状态从气态(如乙硼烷)逐渐转变为液态(如戊硼烷),最终变成固态(如癸硼烷)。截至目前,人们已经制备出20多种硼烷。这些化合物分为两类,其通式分别为:BnHR+4 (n≥2),例如乙硼烷(B2H6)、戊硼烷-9 (B5H9)和十六硼烷(B16H20);以及 BnHR+6 (n≥3),如丙硼烷(B3H9)、戊硼烷-11(B5H11)和壬硼烷(B9H15)。几乎所有硼烷都具有难闻的臭味。低级硼烷在空气中非常活泼,容易自燃、水解、卤化或胺化。

乙硼烷是用量最多且最重要的硼烷,工业上通过三氟化硼与氢化锂在乙醚中反应制得。其他硼烷可通过乙硼烷在不同温度下的热分解获得。由于其燃烧时释放大量热量,硼烷可用作火箭和导弹的高能燃料。此外,它还可用于金属或陶瓷零件处理、橡胶交联以及有机物硼氢化反应中的还原剂。

尽管硼烷用途广泛且重要,但它们具有剧毒性。吸入乙硼烷可能损害肺部,而癸硼烷可能导致心脏功能衰退;高级硼烷则可能对中枢神经系统、肝脏和肾脏造成损害。因此,在使用时必须格外小心。

中文名称 英文名称 CAS号 化学式
N,N-二异丙基乙胺硼烷络合物 N,N-diisopropylethylamine borane 88996-23-0 C8H19BN
N,N-二(4-联苯基)-4-(4,4,5,5-四甲基-1,3,2-二氧硼戊环-2-基)苯胺 bis(biphenyl-4-yl)[4-(4,4,5,5-tetramethyl-[1,3,2]-dioxaborolan-2-yl)phenyl]amine 952431-30-0 C36H34BNO2
B-苄基-9-硼杂双环[3.3.1]壬烷 9-benzyl-9-borabicyclo[3.3.1]nonane 53317-09-2 C15H21B
B-氯-1,2-苯二酚硼烷 2-chloro-1,3,2-benzodioxaborole 55718-76-8 C6H4BClO2
9-(2-乙基己基)-2,7-双(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-9h-咔唑 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-N-(2-ethylhexyl)carbazole 476360-83-5 C32H47B2NO4
5-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)噻唑 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazole 1086111-09-2 C9H14BNO2S
5-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)吲哚啉 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)indoline 1062174-44-0 C14H20BNO2
5-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-2-吡啶甲胺 C-[5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridin-2-yl]-methylamine 880495-82-9 C12H19BN2O2
5,5-二氟-2,8-二碘-1,3,7,9,10-五甲基-5H-二吡咯并[1,2-c:2',1'-f][1,3,2]二氮杂硼烷 4,4-difluoro-2,6-diiodo-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s-indacene 1031443-55-6 C14H15BF2I2N2
4-甲基吗啉硼烷络合物 borane 4-methylmorpholine complex 15648-16-5 C5H14BNO
4-氨基-3-硝基苯硼酸频那醇酯 4-amino-3-nitrophenylboronic acid pinacol ester 833486-94-5 C12H17BN2O4
4-二乙基吡啶硼烷 diethyl(4-pyridyl)borane 93830-58-1 C9H14BN
4-(二乙氨基)苯基硼酸频哪醇酯 N,N-diethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline 920304-57-0 C16H26BNO2
4-(5,5-二甲基-1,3,2-二氧杂己硼烷-2-基)苯甲醛 5,5-dimethyl-2-(4-formylphenyl)-1,3,2-dioxaborinane 128376-65-8 C12H15BO3
4-(4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基)氯苯 4-chlorophenylboronic acid pinacol ester 195062-61-4 C12H16BClO2
4-(4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基)氟苯 2-(4-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 214360-58-4 C12H16BFO2
4-(4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基)-1-三苯甲游基-1H-吡唑 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-trityl-1H-pyrazole 863238-73-7 C28H29BN2O2
4-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-1H-吡唑-1-乙酸甲酯 methyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)acetate 959585-44-5 C12H19BN2O4
4-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-1H-吡唑-1-乙酸 1-(ethoxycarbonylmethyl)-1H-pyrazole-4-boronic acid pinacol ester 1083326-41-3 C11H17BN2O4
4,7-双(4,4,5,5-四甲基-1,3,2-二氧杂戊硼烷-2-基)-2,1,3-苯并噻二唑 4,7-bis-pinacolato-diborane-2,1,3-benzothiadiazole 934365-16-9 C18H26B2N2O4S
4,4,6-三甲基-2-苯基-1,3,2-二氧硼烷 4,4,6-trimethyl-2-phenyl-1,3,2-dioxaborinane 15961-35-0 C12H17BO2
4,4,6-三甲基-2-乙烯基-1,3,2-二氧杂硼烷 4,4,6-trimethyl-2-vinyl-1,3,2-dioxaborinane 4627-10-5 C8H15BO2
4,4,5,5-四甲基-2-(螺[2.5]-5-辛烯-6-基)-1,3,2-二噁硼烷 4,4,5,5-tetramethyl-2-(spiro[2.5]oct-5-en-6-yl)-1,3,2-dioxaborolane 859219-46-8 C14H23BO2
4,4,5,5-四甲基-2-(3,3,5,5-四甲基-1-环己烯-1-基)-1,3,2-二噁硼烷 4,4,5,5-tetramethyl-2-(3,3,5,5-tetramethylcyclohexen-1-yl)-1,3,2-dioxaborolane 859217-85-9 C16H29BO2
4,4,5,5-四甲基-2-(2-(间甲苯基)丙-1-烯-1-基)-1,3,2-二氧杂硼烷 (E)-4,4,5,5-tetramethyl-2-(2-(m-tolyl)prop-1-en-1-yl)-1,3,2-dioxaborolane 1398771-23-7 C16H23BO2
4,4,5,5-四甲基-2-(2-(对甲苯基)丙-1-烯-1-基)-1,3,2-二氧杂硼烷 (E)-4,4,5,5-tetramethyl-2-(2-p-tolylprop-1-enyl)-1,3,2-dioxaborolane 1398771-21-5 C16H23BO2
3-硝基苯硼酸L-酒石酸酯 2-(3-nitrophenyl)-1,3,2-dioxaborolane-(4R,5R)-dicarboxylic acid 467443-01-2 C10H8BNO8
3-甲基苯硼酸频呐醇酯 4,4,5,5-tetramethyl-2-m-tolyl-1,3,2-dioxaborolane 253342-48-2 C13H19BO2
3-丙烯酰胺基苯硼酸频呐醇酯 N-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)acrylamide 874363-18-5 C15H20BNO3
3-(异丙氧基羰基)苯硼酸 3-isopropoxycarbonylphenylboronic acid 342002-80-6 C10H13BO4
3-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)丙腈 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)propanenitrile 238088-31-8 C9H16BNO2
3,5-二甲基苯硼酸频哪醇酯 2-(3,5-dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 325142-93-6 C14H21BO2
3,3-二甲基苯并[C][1,2]氧杂戊硼烷-1(3H)-醇 3,3-dimethylbenzo[c][1,2]oxaborol-1(3H)-ol 221352-10-9 C9H11BO2
2-苯基-1-乙炔硼酸频那醇酯 4,4,5,5-tetramethyl-2-phenylethynyl-[1,3,2]dioxaborolane 159087-45-3 C14H17BO2
2-苄基-4,4,5,5-四甲基-1,3,2-二杂氧戊硼烷 pinacol benzylboronate 87100-28-5 C13H19BO2
2-甲氧基-3-氟吡啶-5-硼酸�鼓拇减� 3-fluoro-2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 1310384-35-0 C12H17BFNO3
2-甲基吡啶硼烷复合物 2.6-(CH3)2C5H3N*BH3 3999-42-6 C7H12BN
2-甲基-3-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)苯甲酸甲酯 methyl 2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate 955929-54-1 C15H21BO4
2-氯-5-(4,4,5,5-四甲基-1,3,2-二氧硼烷)吡啶 2-chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 444120-94-9 C11H15BClNO2
2-氯-4-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)苯甲腈 2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile 548797-51-9 C13H15BClNO2
2-乙炔-4,4,5,5-四甲基-[1,3,2]二噁硼烷 2-ethynyl-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane 347389-74-6 C8H13BO2
2-乙氧基-4,4,6-三甲基-1,3,2,-二羟硼 2-ethoxy-4,4,6-trimethyl-1,3,2-dioxaborinane 52386-21-7 C8H17BO3
2-丙二烯基-4,4,5,5-四甲基-1,3,2-二氧杂硼烷 4,4,5,5-tetramethyl-2-(propa-1,2-dien-1-yl)-1,3,2-dioxaborolane 865350-17-0 C9H15BO2
2-丁基-4,4,5,5-四甲基-1,3,2-二杂氧戊硼酸 pinacol butylboronate 69190-62-1 C10H21BO2
2-(氯甲基)-4,4,5,5-四甲基-1,3,2-二噁硼烷 2-(chloromethyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 83622-42-8 C7H14BClO2
2-(噻吩-3-基)-2,3-二氢苯并[D][1,3,2]二氮杂硼硼烷-4(1H)-酮 2-(thiophen-3-yl)-2,3-dihydrobenzo[d][1,3,2]diazaborinin-4(1H)-one 1296939-24-6 C11H9BN2OS
2-(4-羧苯基)-1,3,2-二氧杂硼烷 2-(4-carboxyphenyl)-1,3,2-dioxaborinane 126747-13-5 C10H11BO4
2-(4-溴丁基)-1,3,2-苯并二氧杂戊硼烷 4-bromo-1-butylboronic acid catechol ester 142172-51-8 C10H12BBrO2
2-(4-(二氟甲氧基)-2,3-二氟苯基)-4,4,5,5-四甲基-1,3,2-二氧硼烷 2-(4-(difluoromethoxy)-2,3-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 1628442-57-8 C13H15BF4O3
2-(3-氯苄基)-4,4, 5,5-四甲基-1,3,2-二噁硼烷 2-(3-chlorobenzyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 517920-59-1 C13H18BClO2