环丁烯砜

• 产品号: A13887
• CAS号: 77-79-2
• 分子式: C4H6O2S
• 分子量: 118.15424
• 纯 度: 98%

产品别名

• 标题: 3-Sulfolene
• IUPAC标准名: 2,5-dihydro-1λ^6-thiophene-1,1-dione
• IUPAC传统名: sulfolene
• 别名: Butadiene sulfone; 2,5-Dihydrothiophene-1,1-dioxide

产品登记号

• MDL号: MFCD00005481
• Beilstein号: 107004
• EC号: 201-059-7
• CAS号: 77-79-2
• 默克索引号: 148956

产品性质

• 纯度: 98%
• 密度: 1.314
• 闪点: 112°C(233°F)
• 熔点: 63-67°C
• GHS危险声明: H318
• 欧盟危险性物质标志: 刺激性(Irritant) (Xi)
• GHS警示性声明: P280-P305+P351+P338-P310
• 危险公开号: 41
• RTECS编号: XM9100000
• 安全公开号: 26-39
• TSCA收录: 是

参考文献

• Convenient crystalline source of 1,3-butadiene, which is generated on heating to about 110^oC: Rec. Trav. Chim., 61, 785 (1942). For an example of its use in the Diels-Alder reaction, see: Org. Synth. Coll., 6, 454 (1988).
• Also behaves as a dienophile in with reactive dienes, for example 1,3-Diphenylisobenzofuran, L00101: J. Org. Chem., 34, 538 (1969).
• In the presence of Pd(OAc)₂, couples with aryldiazonium fluoroborates to give 3-aryl-4-sulfolenes which are readily isomerized with triethylamine to the 3-aryl-3-sulfolenes, providing a source of the corresponding 2-arylbutadienes: Synth. Commun., 26, 231 (1996).
• Lithiation occurs at the 2-position; subsequent alkylation and thermal extrusion of SO₂ gave a polyene intermediate in a synthesis of the taxane ring system: J. Org. Chem., 62, 2957 (1997).