Photochemistry of <i>N-</i>Acetyl-, <i>N-</i>Trifluoroacetyl-, <i>N-</i> Mesyl-, and <i>N-</i>Tosyldibenzothiophene Sulfilimines
作者:Vasumathi Desikan、Yonglin Liu、John P. Toscano、William S. Jenks
DOI:10.1021/jo702654q
日期:2008.6.1
Time-resolved infrared (TRIR) spectroscopy, product studies, and computational methods were applied to the photolysis of sulfilimines derived from dibenzothiophene that were expected to release acetylnitrene, trifluoroacetylnitrene, mesylnitrene, and tosylnitrene. All three methods provided results for acetylnitrene consistent with literature precedent and analogous experiments with the benzoylnitrene
时间分辨红外(TRIR)光谱,产品研究和计算方法被应用于对二苯并噻吩衍生的亚硫胺的光解,这些亚硫胺有望释放出乙炔,三氟乙炔,甲磺腈和甲苯磺腈。所有这三种方法均提供了乙炔基丁二烯的结果,该结果与文献中的先例和与苯甲酰基丁二烯前体的类似实验一致,即基态多重性为单峰。相比之下,尽管TRIR实验更加模糊,但产品研究清楚地表明了三氟乙酰基丁二烯的三重态反应性。产品研究表明,这些亚硫胺是磺酰氮的优良来源,与相应的叠氮化物相比,它们具有三重基态,并且计算研究为腈的电子结构提供了线索。