Abstract
Deprotonation of acetylacetone yields two enolate ions, MeCO C HCOMe and C H 2COCH 2COMe, with the former predominating. On collisional activation, the ion C H 2COCH 2COMe fragments principally by competitive eliminations of ketene and acetone: minor fragmentations occur after conversion of the ion to MeCO C HCOMe. The ion MeCO C HCOMe eliminates H ., CH 3 ., CH 4, H 2O, CH 2CO and MeCOMe on collisional activation. Loss of ketene is the major fragmentation: a combination of labelling studies and ab initio caculations suggest the pathway MeCO C HCOMe → MeCOCH 2COCH 2 − → MeCOCH 2 − + CH 2CO.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Mass Spectrometry and Ion Processes
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
