Chemistry of singlet oxygen. 49. Photooxidation of thiiranes
作者:Frank Jensen、Christopher S. Foote
DOI:10.1021/ja00239a030
日期:1987.3
The reaction between thiiranes and singletoxygen has been investigated. Diphenylthiirane is unreactive, but simple alkyl thiiranes react readily, even at low temperature. The products depend on solvent and substrate concentration. In nonnucleophilic solvents, the primary product is the thiirane oxide. In methanol, the primary products are sulfinic esters at low substrate concentration and thiirane
硫杂丙烷与单线态氧之间的反应已被研究。二苯基硫杂丙环不活泼,但简单的烷基硫杂丙环即使在低温下也很容易反应。产物取决于溶剂和底物浓度。在非亲核溶剂中,主要产物是氧化硫杂。在甲醇中,主要产物是低底物浓度的亚磺酸酯和高浓度的硫杂丙环氧化物。建议反应通过中间体进行,为此他们指定了过氧硫杂环丁烷氧化物结构。潜在中间体的结构已使用 3-21 G(*) 基组在 ab initio 水平计算。反应机理是在前沿分子轨道理论和从头计算的基础上讨论的。