作者:Michael A. Kinder、Jürgen Kopf、Paul Margaretha
DOI:10.1016/s0040-4020(00)00498-1
日期:2000.9
1H-2-Benzothiopyran-1-ones (isothiocoumarins) and 1H-2-benzopyran-1-ones (isocoumarins) behave dissimilarly on solid state irradiation at room temperature as the former photocyclodimerize efficiently while the latter only undergo slow photodecomposition. Both 4H-naphtho[2,1-c]pyran-4-one and thiopyran-4-one turn out to be photostable under these same reaction conditions.
1 H -2-苯并噻喃-1-酮(异硫香豆素)和1 H -2-苯并吡喃-1-酮(异香豆素)在室温下的固态照射下表现不同,因为前者的光环二聚体有效地聚合,而后者仅经历缓慢的光分解。在相同的反应条件下,4 H-萘并[2,1 - c ]吡喃-4-酮和硫代吡喃-4-酮都具有光稳定性。