1. The characterisation of two halogenated cathinone analogues: 3,5- Difluoromethcathinone and 3,5-dichloromethcathinone 
Sean Davis, Karen Rands-Trevor, Sue Boyd, Methsiri Edirisinghe 
Forensic Science International 
Volume 217, Issue 1, Pages (April 2012)
DOI: /j.forsciint
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2. Fig. 1
Analogues of cathinone: 4-methylmethcathinone 1 3-fluoromethcathinone 2 3,4-methylenedioxymethcathinone 3 cathinone 4 3,5-difluoromethcathinone 5 3,5-dichloromethcathinone 6 and bupropion 7.
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3. Fig. 2
Electron impact mass spectrum for (a) 3,5-difluoromethcathinone (b) suspected 3,5-difluoromethcathinone (c) N-acetyl-3,5-difluoromethcathinone (d) suspected N-acetyl-3,5-difluoromethcathinone.
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4. Fig. 3 Major EIMS fragmentations for 5 and 6.
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5. Fig. 4
3-Fluoro-isomethcathinone 8 iso-mephedrone 9 iso-ethcathinone 10 and 3,5-difluoro-isomethcathinone 11.
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6. Fig. 5
EIMS for (a) compound tentatively identified as 3,5-difluoro-isomethcathinone (b) sample containing compound tentatively identified as 3,5-difluoro-isomethcathinone and the N-acetyl derivatives (c) and (d), respectively.
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7. Fig. 6
EIMS for (a) 3,5-dichloromethcathinone (b) suspected 3,5-dichloromethcathinone (c) N-acetyl-3,5-dichloromethcathinone and (d) suspected N-acetyl-3,5-dichloromethcathinone.
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8. Fig. 7
ATR-FTIR spectra for (a) 3,5-difluoromethcathinone hydrochloride (b) suspected 3,5-difluoromethcathinone hydrochloride and the compound tentatively identified as 11 (c) 3,5-dichloromethcathinone hydrochloride and (d) suspected 3,5-dichloromethcathinone hydrochloride.
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9. Fig. 8
Vapour phase infrared spectra for (a) 3,5-difluoromethcathinone, (b) suspected 3,5-difluoromethcathinone, (c) 3,5-dichloromethcathinone and (d) suspected 3,5-dichloromethcathinone.
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10. Scheme 1
Formation of 3,5-difluoromethcathinone hydrochloride. a. Br2, CH2Cl2, RT, 30min, 95%; b. CH3NH2, RT, 2h, 27%.
Forensic Science International  , DOI: ( /j.forsciint )
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11. Scheme 2
Formation of 3,5-dichloromethcathinone hydrochloride. a. EtMgBr, THF, RT, 18h, 64%; b. Br2, CH2Cl2, RT, 18h, 45%; c. CH3NH2, THF, RT, 1h, 17%.
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12. Forensic Science International 2012 217, 139-145DOI: (10. 1016/j
Forensic Science International  , DOI: ( /j.forsciint )
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