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苯甲醛肟, 主要为 E式异构体_分子结构_CAS_932-90-1)
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苯甲醛肟, 主要为 E式异构体

产品号 A12053 公司名称 Alfa Aesar
CAS号 932-90-1 公司网站 http://www.alfa.com
分子式 C7H7NO 电 话
分子量 121.13658 传 真
纯 度 98% 电子邮件
保 存 Chembase数据库ID: 88864

产品价格信息

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产品别名

标题
Benzaldoxime, predominantly (E)-isomer
IUPAC标准名
(E)-N-(phenylmethylidene)hydroxylamine
IUPAC传统名
benzaldoxime,syn
别名
Benzaldehyde oxime

产品登记号

EC号 213-261-2
CAS号 932-90-1
MDL号 MFCD00002119
Beilstein号 774138

产品性质

欧盟危险性物质标志 刺激性(Irritant) 刺激性(Irritant) (Xi)
GHS警示性声明 P261-P305+P351+P338-P302+P352-P321-P405-P501A
危险公开号 36/37/38
安全公开号 26-37
TSCA收录
GHS危险品标识 GHS07
GHS危险声明 H315-H319-H335
纯度 98%
沸点 118-120°C/10mm
密度 1.110
闪点 108°C(226°F)
熔点 33-35°C
折射率 1.5900

产品详细信息

参考文献

  • For conversion to the isothiocyanate, see Thiourea, A12828.
  • The oximate anion displaces activated aromatic nitro (or halogen) substituents. A second mole of oximate functions as base with elimination of benzonitrile and overall conversion of the nitro-compound to a phenol: J. Org. Chem., 39, 3343 (1974):
  • Conjugate addition of the oximate anion to ɑ?-unsaturated acetylenic carbonyl compounds gives ?-dicarbonyl compounds: J. Org. Chem., 59, 1219 (1994). For example with reaction scheme, see Methyl phenylpropiolate, B24587.
  • Aldoximes are conventionally dehydrated to nitriles with acetic anhydride; see, e.g.: Org. Synth. Coll., 2, 622 (1943). Many other dehydration methods have been described, including: Triethyl orthoformate and acid: J. Org. Chem., 39, 3424 (1974). DMF - SOCl2: Tetrahedron Lett., 25, 3365 (1984). SOCl2 - DMAP: Synthesis, 472 (1983). DCC: Synth. Commun., 3, 101 (1973); Chem. Ber., 107, 1221 (1974). PPh3 - CBr4: Synth. Commun., 20, 2785 (1990). Trichloromethyl chloroformate (diphosgene): Synthesis, 129 (1990). For a further example, see Trichloroacetonitrile, A10565. See also Hydroxylamine hydrochloride, A15398 for one-pot conversion of aldehydes to nitriles.
  • Chlorination followed by elimination of HCl from the benzohydroxamoyl chloride leads, in situ, to the 1,3-dipole benzonitrile oxide. See, e.g.: Org. Synth. Coll., 5, 504 (1973).