title: The synthesis, mass spectrometric properties and identification of some N,N-di-(β-arylisopropyl)formamides related to the synthesis of ring-modified amphetamines.
abstract: This study examines the electron impact (EI) induced mass spectrometric behavior of several N,N-di-(β-arylisopropyl)formamides, which are connected to the Leuckart synthesis of some amphetamine analogues. Emphasis is laid on the fragmentation paths, which are common for all compounds under investigation and may be used in construction of the prediction scheme useful for identification of similar impurities, especially in absence of desirable authentic material. On the basis of this scheme several new N,N-di-(β-arylisopropyl)formamides have been identified in selected amphetamine analogues synthesized by the Leuckart method, including 4-methylthioamphetamine (4-MTA), 4-fluoroamphetamine (4-FA), 4-methylamphetamine, 3-trifluoromethylamphetamine, 3,4-methylenedioxyamphetamine (MDA), 2,5-dimethoxyamphetamine (2,5-DMA), 2,4,5- and 3,4,5-trimethoxyamphetamines (2-TMA and 3-TMA).
authors.affiliation: Forensic Laboratory, Internal Security Agency, 1 Sierpnia 30A, 02-134 Warsaw, Poland. blachutd@op.pl
authors.forename: Dariusz
authors.initials: D
authors.lastname: Błachut
authors.forename: Witold
authors.initials: W
authors.lastname: Danikiewicz
authors.forename: Krystyna
authors.initials: K
authors.lastname: Wojtasiewicz
authors.forename: Marian
authors.initials: M
authors.lastname: Olejnik
authors.forename: Iwona
authors.initials: I
authors.lastname: Kalinowska
authors.forename: Joanna
authors.initials: J
authors.lastname: Szawkało
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Czarnocki