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丁炔二酸二甲酯

产品号 A11437 公司名称 Alfa Aesar
CAS号 762-42-5 公司网站 http://www.alfa.com
分子式 C6H6O4 电 话
分子量 142.10944 传 真
纯 度 98% 电子邮件
保 存 Chembase数据库ID: 78495

产品价格信息

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产品别名

标题
Dimethyl acetylenedicarboxylate
IUPAC标准名
1,4-dimethyl but-2-ynedioate
IUPAC传统名
1,4-dimethyl but-2-ynedioate
别名
Acetylenedicarboxylic acid dimethyl ester
Butynedioic acid dimethyl ester

产品登记号

MDL号 MFCD00008456
EC号 212-098-4
CAS号 762-42-5
Beilstein号 607063

产品性质

纯度 98%
沸点 195-198°C
密度 1.156
闪点 86°C(186°F)
熔点 -18°C
折射率 1.4480
GHS危险品标识 GHS05
GHS危险品标识 GHS07
GHS危险声明 H314-H318-H302-H227
欧盟危险性物质标志 X
欧盟危险性物质标志 腐蚀性(Corrosive) 腐蚀性(Corrosive) (C)
GHS警示性声明 P210-P260-P303+P361+P353-P305+P351+P338-P405-P501A
危险公开号 21/22-34
RTECS编号 ES0175000
安全公开号 26-36/37/39-45
保存注意事项 Light Sensitive
TSCA收录
联合国危险货物等级 8
联合国危险货物编号 UN1760
联合国危险货物包装类别(PG) II

产品详细信息

参考文献

  • Dienophile in Diels-Alder and related reactions. For addition to a bis-allene, followed by dimerization to a paracyclophane, see: Org. Synth. Coll., 7, 485 (1990).
  • For use in the masking of double bonds for subsequent release by cycloreversion, see: J. Org. Chem., 44, 962 (1979). Review of cycloreversion reactions in organic synthesis: Synthesis, 121 (1985).
  • Used in synthesis of a wide variety of heterocyclic systems including benzo[b]thiophenes from thiophenols: Acta Chem. Scand.,27, 595 (1973), and chromones from phenols: Austral. J. Chem., 48, 677 (1995):
  • Stabilized anions derived from cyclic ?-keto phosphonates undergo ring expansion, via a tandem Michael-Aldol-fragmentation mechanism, to give phosphonates with an additional two carbons in the ring, thus providing a route to highly functionalized medium ring compounds: J. Org. Chem., 60, 3084 (1995):
  • Reacts with activated carbonyl compounds, such as ɑ-keto esters or ɑ-keto nitriles, in the presence of triphenylphosphine, to give highly functionalized -butyrolactones: J. Org. Chem., 61, 4516 (1996). For a further example with reaction scheme, see 2,2,2-Trifluoroacetophenone, A11403.