Organic Communications

Year: 2009 Volume: 2 Issue:1 January-March

Original Article

1) Synthesis of 2,3-epoxy-1-phenyl-3-aryl-1-propanone by combination of phase transfer catalyst and ultrasound irradiation

Org. Commun. (2009) 2:1 ; 1 - 6
by Ji-Tai Li, Xian-Feng Liu, Ying Yin, Chao Du,

Seven 2,3-epoxy-1-phenyl-3-aryl-1-propanones were synthesized via epoxidation of the corresponding 1-phenyl-3-aryl-2-propen-1-ones with 30% aqueous hydrogen peroxide in 74-99% yields using benzyldimethyltetradecylammonium chloride as phase transfer catalyst under ultrasound irradiation.

Keywords
Epoxidation 2 3-epoxy-1-phenyl-3-aryl-1-propanone phase-transfer catalysis ultrasonic irradiation
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© 2009 ACG Publications. All rights reserved.
Original Article

2) Photolysis of some 2-butenyl/butynylbischromones: Effect of solvent polarity

Org. Commun. (2009) 2:1 ; 7 - 19
by Rupesh Kumar and Mohamad Yusuf

Photochemistry of some 2-butenyl/butynyl-bischromones has been investigated in benzene and isopropanol-THF (1:1). The photoreactions are initiated through the intramolecular H-abstraction that leads to the formation of tetracyclic derivatives and vinyl bischromones. Photolytic conversion of the bischromones is found to be dependent upon the nature of the intermediate spacer and H-donating capability of the solvent.

Keywords
1 4-biradicals bischromones chromophores photolytic conversion intermediate spacer
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© 2009 ACG Publications. All rights reserved.
Original Article

3) On reactions of triazinones: Synthesis of new 5-arylidene-4,5-dihydro-1,2,4-triazin-6-ones

Org. Commun. (2009) 2:1 ; 20 - 27
by Hany M. Dalloul and Ali Z. Al-Shorafa

5-Benzylidene-, 5-(furan-2-ylmethylene)- and 5-(thiophen-2-ylmethylene)-4,5-dihydro-1,2,4-triazin-6-ones have been synthesized from the reaction of 4,5-dihydro-1,2,4-triazin-6-ones with appropriate aromatic aldehydes. All the products have been characterized by elemental analysis and their spectral data.

Keywords
Cyclocondensation aromatic aldehydes 4 5-dihydro-1 2 4-triazin-6-ones
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© 2009 ACG Publications. All rights reserved.