2,5-二芳基取代噁唑衍生物质谱裂分规律的研究

STUDY ON THE MS FRAGMENTATION PATTERNS OF 2,5-DIARYLSUBSTITUENT OXAZOLE DERIVATIVES

用E．I源，作出了十个2，5-二芳基取代唑衍生物的常规质谱，并采用B／E为常数联动扫描，找出了主要质谱峰的子离子，以此研究了该系列化合物质谱裂分规律、共同碎片离子的形成过程、R取代基对化合物质谱裂分规律的影响．

The routine mass spectra of ten 2- (4' -substituted styryl ) phenyl-5- (4'-biphenyl ) oxa-zole compounds were measured. Their MS fragmentation patterns have been interpretedon the basis of looking for the daughter ions from the parent ions by means of EI linkedscan. The formation mechanisms of same fragment ions and effect the substituent groupon the relative aboudance of the ion peaks have also been studied.