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ボラン

ボランは水素化ホウ素とも呼ばされ，ホウ素と水素という二つの要素によって形成された一連の化合物の総称である。簡単なボランは無色であり，不快な臭いを有し，毒性が非常に強い。一般的にその化学的性質が不安定であり，空気中で自然発火でき，酸化ホウ素を生成する。ホウ素原子の増加に伴って，ボランは気体状態（例えばジボラン）から順に液体状態（例えばペンタボラン）と固体状態（例えばデカボラン）に変化する。今まで開発されたボランは２０種以上あり，二つの種類に分けられ，その一般式はそれぞれ以下のとおりである：BnHR+4(n≥2)：例えばジボラン(B2H6)、ペンタボラン-9 (B5H9)、シックスティーンボラン(B16H20)；BnHR+6(n≥3)：例えばプロピルボラン(B3H9)、ペンタボラン-11(B5H11)、ノナンボラン(B9H15)等。ボランはいずれも不快な臭いを有する。低級ボラン（一般的にホウ素原子を含有しない）の化学的性質は活性であり，空気中で自然発火でき，加水分解、ハロゲン化、及びアミノ化を行わやすい。使用量が最も多くかつ最も重要なのはジボランである。工業分野でジボランはエーテルの作用下で三フッ化ホウ素と水素化リチウムによって調製される。その他のボランは異なる温度下でジボランを熱分解して調製される。燃焼時にボランは多くの熱量を発し，そのためロケット及びミサイルの高エネルギー燃料として用いられる。また金属やセラミック部品の処理剤，ゴムの架橋剤としても用いられる。ジボランの一つの重要な用途はヒドロホウ素化反応における有機物の還元剤として用いられる。ボランは毒性が非常に強く，ジボランを吸入すれば肺を損傷し，デカボランを吸入すれば心不全を引き起こし，高級ボランは中枢神経系の中毒を引き起こしかつ肝臓や腎臓を損傷することができる。従ってボランを使用する時に注意しなければならない。

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Chemical Name	CAS	MF
methyl 5-methoxy-2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate	2819707-52-1	C16H23BO5
tert-butyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-(trifluoromethyl)phenyl)azetidine-1-carboxylate	2223011-85-4	C21H29BF3NO4
2-(2-クロロ-4-シクロプロピルフェニル)-4,4,5,5-テトラメチル-1,3,2-ジオキサボロラン	2223038-08-0	C15H20BClO2
2-(oxetan-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline	2223037-06-5	C15H22BNO3
2-cyclopropyl-4-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	2819708-38-6	C16H19BFNO2
2-(2-cyclopropyl-5-(methoxymethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223039-31-2	C17H25BO3
2-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	1220696-48-9	C16H20BNO2
1-(3-Fluorophenyl)-3-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole	1402240-90-7	C15H18BFN2O2
Methyl 2,3,4-trifluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate	2223046-78-2	C14H16BF3O4
2-bromo-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazole	1402166-32-8	C9H13BBrNO2S
2-cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline	2223052-76-2	C15H22BNO2
5-Methoxy-2-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	1116097-04-1	C14H18BNO3
methyl 2-(diethylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate	2256756-13-3	C18H28BNO4
5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(o-tolyl)pyrimidine	1402172-43-3	C17H21BN2O2
2-Fluoro-4-(piperidino)phenylboronic acid pinacol ester	2223032-11-7	C17H25BFNO2
2-chloro-4-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	1443378-94-6	C14H17BClNO3
tert-butyl 3-(5-chloro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)azetidine-1-carboxylate	2223012-39-1	C20H29BClNO4
2-(3-(1,3-dioxan-5-yl)-5-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2241866-56-6	C16H22BFO4
4-cyclopropyl-2-fluoro-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	2819707-74-7	C16H19BFNO2
2-(oxetan-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline	2223040-78-4	C15H22BNO3
2-(3-methoxy-4-(tetrahydro-2H-pyran-4-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223053-45-8	C18H27BO4
BENZOIC ACID, 2-BROMO-5-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-, METHYL ESTER	870195-96-3	C14H18BBrO4
tert-butyl 3-(2-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyrrolidine-1-carboxylate	2222997-06-8	C24H36BNO4
3-bromo-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one	2256755-08-3	C11H15BBrNO3
(3-フルオロ-4-(4-メチルピペラジン-1-イル)フェニル)ボロン酸ピナコールエステル	1408088-34-5	C17H26BFN2O2
2-(1H-pyrazol-1-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine	1309982-46-4	C13H17BN4O2
4-cyclopropyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	2223052-41-1	C16H20BNO2
4-(oxetan-3-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	2223036-06-2	C16H20BNO3
4,4,5,5-tetramethyl-2-(3-(3-methylbicyclo[1.1.1]pentan-1-yl)phenyl)-1,3,2-dioxaborolane	2710295-69-3	C18H25BO2
2-Methyl-4-(4-methylpiperidin-1-yl)phenylboronic acid pinacol ester	2223035-14-9	C19H30BNO2
1-cyclopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one	2388985-08-6	C14H20BNO3
N,N-ジエチル-4-(4,4,5,5-テトラメチル-1,3,2-ジオキサボロラン-2-イル)アニリン	920304-57-0	C16H26BNO2
5-chloro-4-ethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	2819707-36-1	C15H19BClNO2
2-(5-cyclopropyl-3-methoxy-2-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2819708-49-9	C17H22BF3O3
2-Cyano-4-(imidazol-1-yl)phenylboronic acid pinacol ester	2223032-81-1	C16H18BN3O2
1-[3-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-5-TRIFLUOROMETHYLPHENYL]PYRROLIDIN-2-ONE	2223042-26-8	C17H21BF3NO3
1-[4-(1,1-Dimethylethyl)phenyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-y...	1402233-29-7	C19H27BN2O2
2-(2-fluorophenyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine	1402172-92-2	C16H18BFN2O2
4,4,5,5-tetramethyl-2-[4-(oxetan-3-yloxy)phenyl]-1,3,2-dioxaborolane	1398503-18-8	C15H21BO4
2-(4-methoxy-2-(tetrahydro-2H-pyran-4-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223045-43-8	C18H27BO4
2-(pyridin-3-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine	2223041-61-8	C15H18BN3O2
4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole-2,5-d2	1643415-65-9	C9H13BD2N2O2
tert-butyl 3-(4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazol-2-yl)piperidine-1-carboxylate	2256758-37-7	C20H33BN2O4S
2-(4-(1,4-dioxan-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2222996-31-6	C16H23BO4
1-[3-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-5-METHYLPHENYL]PYRROLIDIN-2-ONE	2223033-53-0	C17H24BNO3
4,4,5,5-tetramethyl-2-(2-methyl-4-(tetrahydro-2H-pyran-3-yl)phenyl)-1,3,2-dioxaborolane	2223009-75-2	C18H27BO3
5-chloro-4-cyclopropyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	2819707-34-9	C16H19BClNO2
4-methoxy-2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	2819708-17-1	C15H20BNO3
3-Bromo-4-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline	2223055-65-8	C12H16BBrFNO2
2-Fluoro-6-(4-methoxyphenyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)p...	2710289-93-1	C18H21BFNO3
tert-butyl 4-(4-fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperidine-1-carboxylate	2256708-69-5	C22H33BFNO4
1,4-Dimethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-1,2,3-triazole	1627933-42-9	C10H18BN3O2
4,4,5,5-Tetramethyl-2-[3-methyl-5-(3-oxetanyl)phenyl]-1,3,2-dioxaborolane	2223043-82-9	C16H23BO3
2-Methyl-4-(1H-pyrazol-1-yl)phenylboronic acid pinacol ester	858523-46-3	C16H21BN2O2
4-クロロチオフェン-2-ボロン酸ピナコールエステル	1040281-84-2	C10H14BClO2S
4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperidine	1247000-93-6	C17H26BNO2
2-(4-methyl-1H-pyrazol-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine	1351231-80-5	C14H19BN4O2
5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(p-tolyl)pyrimidine	1402172-42-2	C17H21BN2O2
5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(2-(trifluoromethyl)phenyl)pyrimidine	1402233-88-8	C17H18BF3N2O2
4,4,5,5-Tetramethyl-2-(4-phenylfuran-2-yl)-1,3,2-dioxaborolane	1242517-60-7	C16H19BO3
2-Methyl-4-(imidazol-1-yl)phenylboronic acid pinacol ester	2223040-14-8	C16H21BN2O2
methyl 3-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate	2223030-56-4	C17H23BO4
3-Fluoro-4-(imidazol-1-yl)phenylboronic acid pinacol ester	2223053-40-3	C15H18BFN2O2
1-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)phenyl)-1H-pyrrole	2223032-13-9	C17H19BF3NO2
tert-butyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)phenyl)azetidine-1-carboxylate	2223055-58-9	C21H29BF3NO4
5-(tetrahydro-2H-pyran-4-yl)-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	2223040-82-0	C18H24BNO3
2-[3-Fluoro-5-(3-oxetanyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223011-81-0	C15H20BFO3
1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(4-tricyclo[3.3.1.13,7]dec-1-ylphenyl)-	1644541-87-6	C22H31BO2
methyl 4-cyano-3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate	2819707-83-8	C16H20BNO4
methyl 2-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)benzoate	2819708-63-7	C18H22BF3O4
2-(3-cyclopropyl-4-(1,4-dioxan-2-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223009-48-9	C19H27BO4
2-ethyl-1-isopropyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-imidazole	2223032-12-8	C14H25BN2O2
tert-butyl 3-(2-amino-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)azetidine-1-carboxylate	2223012-11-9	C20H31BN2O4
5-chloro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)benzonitrile	2819707-98-5	C14H14BClF3NO2
tert-butyl 3-(5-amino-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)azetidine-1-carboxylate	2223044-43-5	C20H31BN2O4
tert-butyl 3-(2-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)azetidine-1-carboxylate	2223041-11-8	C20H29BFNO4
5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)pyrimidine	1701434-52-7	C11H14BF3N2O2
2-(8,8-dimethyl-6,10-dioxaspiro[4.5]decan-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2433809-21-1	C16H29BO4
2-(2,4-dichloro-5-cyclopropylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2819707-64-5	C15H19BCl2O2
1-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,5-dihydro-1H-pyrrole	1779540-37-2	C11H20BNO2
2-(2-chloro-4-(tetrahydro-2H-pyran-4-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223040-21-7	C17H24BClO3
1H-Pyrazole, 1,4-dimethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-	2223043-80-7	C11H19BN2O2
2-(2-cyclopropyl-3-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2223053-36-7	C16H23BO2
2-Chloro-4-(4-methylimidazol-1-yl)phenylboronic acid pinacol ester	2223046-20-4	C16H20BClN2O2
3-(Trifluoromethyl)-4-(morpholino)phenylboronic acid pinacol ester	1373522-71-4	C17H23BF3NO3
5-broMo-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)picolinonitrile	863868-54-6	C12H14BBrN2O2
2-(4-Bromo-1H-pyrazol-1-yl)pyrimidine-5-boronic acid pinacol ester	1402233-93-5	C13H16BBrN4O2
1-methyl-4-(6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)piperazine	1315349-74-6	C16H26BN3O2
2-(3-cyclopropyl-5-methyl-2-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	2819708-67-1	C17H22BF3O2
1-[4-(TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-3-METHYLPHENYL]PYRROLIDIN-2-ONE	1351501-29-5	C17H24BNO3
Benzoic acid, 3-aMino-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-, Methyl ester	850689-26-8	C14H20BNO4
2-(4-Methylpiperidin-1-yl)-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)pyridine	1353877-52-7	C17H27BN2O2
tert-butyl 4-(4-methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperidine-1-carboxylate	2256708-70-8	C23H36BNO5
tert-butyl 3-(5-methoxy-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)azetidine-1-carboxylate	2223044-71-9	C21H32BNO5
methyl 4-cyano-2-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate	2819707-82-7	C18H22BNO4
2-(4-methylpiperazin-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile	1105665-06-2	C18H26BN3O2
2-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)benzonitrile	2819707-89-4	C15H17BF3NO2
5-(2-Trifluoromethylphenyl)furan-2-boronic acid pinacol ester	1402233-43-5	C17H18BF3O3
3-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan95%	1350543-95-1	C11H17BN2O2
2-(3-methoxyphenyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine	1402227-27-3	C17H21BN2O3