Ultrasonic photolysis of methyl disulfide and hexafluorobutadiene
作者:Madeline S. Toy、Roger S. Stringham
DOI:10.1016/s0022-1139(00)80950-1
日期:1984.6
An ultrasonic photolytic method was described for preparing adducts of hexafluorobutadiene and methyl disulfide. In the presence of an excess CH3SSCH3, the major product was trans-1,4-bis(methylthio)hexafluoro-2-butene. The minor products were the 1:2 adducts (CH3SSCH3·2C4F6) in the presence of a mixture, which consisted of a small amount of other oligomeric mixtures and isomeric 1:1 adducts.
High pressure isomerization of 1,4-bis(methylthio)hexafluoro-2-butene to-1-butene
作者:Madeline S. Toy、Roger S. Stringham
DOI:10.1016/s0022-1139(00)81480-3
日期:1984.8
migration of the internal olefinic bond of trans-1,4-bis(methythio)hexafluoro-2-butene(I) under high pressure to the terminal olefinic bond to form cis- and trans-1,4-bis(methylthio)hexafluoro-1-butene(II) is described. The Teflon-lined high pressure cell maintains a constant pressure at 16,000 atm and 180 to 200°C for 24 hours. The cis- and trans-II are elucidated from gas chromatography-mass spectroscopy
高压下反式1,4-双(甲硫基)六氟-2-丁烯(I)的内部烯键的完整键迁移至末端烯键以形成顺式和反式1,4-双(甲硫基) )描述了六氟-1-丁烯(II)。衬有特氟隆的高压电池在16,000 atm和180至200°C的温度下保持24小时的恒定压力。从气相色谱-质谱法中阐明了顺式和反式II,该图显示了m / e值为255(C 6 H 6 F 6 S 2 +)的两个相同的母体离子,但洗脱时间不同。总结了异构体产物的19 FNMR数据。II的元素分析通过双聚焦高分辨率质谱仪验证。
Photosonosynthesis of 1,2,4-tris(methylthio)-3-H-hexafluoro-n-butane
作者:Madeline S. Toy、Roger S. Stringham
DOI:10.1016/s0022-1139(00)82325-8
日期:1985.9
1,2,4-tris(methylthio)-3-H-hexafluoro-n-butane is described. The mechanism, which involves the elimination of hydrogen fluoride with the subsequent isomerization in forming the cis- and trans- 1,2,4-tris(methylthio)hexafluoro-l-butene, is discussed. This study also supports the presence of methanethiol as an intermediate during the photosonoreaction of bis(methylthio)hexafluoro-2-butene with an excess