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Paper | Regular issue | Vol 27, No. 9, 1988, pp.2141-2152
Published online, 1st January, 1970
DOI: 10.3987/COM-88-4577
Synthesis of New 8-Phenyl[1,2]dithiolo[1,5-b]naphtho[2,1-d][1,2]dithiole-10-SIV, 2,5-Diphenyl-3,4-dihydro-1,6,6a-trithia(6a-SIV)cyclopenta[cd]pentalene and 2,6-Diphenyl-4,5-dihydro-3H-[1,2]dithiolo[4,5,1-hi][1,2]benzodithiole-8-SIV Derivatives

Anotonino Arcoleo,* Giovanni Abbate, Mario Gottuso, Giacomo Fontana, and Gaetano Giammona

*Facolta‘ di Scienze, Dipartimento di Scienze Botaniche - Sezione Fitochimica, Università digli Studi di Palermo, Via Archirafi 20 90123 Palermo, Italy


In order to investigate the anti-oxidant properties on lubricant oils, 5,6-dihydro-8-phenyl[1,2]dithiolo[1,5-b]naphtho[2,1-b][1,2]dithiole-10-SIV and a number of phenyl substituted derivatives have been synthesized by cyclization with P2S5 of the corresponding 1,3,5-triketones in toluene. Moreover, some 2,5-diphenyl-3,4-dihydro-1,6,6a-trithia(6a-SIV)cyclopenta[cd]pentalene and 2,6-diphenyl-4,5-dihydro-3H-[1,2]dithiolo[4,5,1-hi][1,2]benzodithiole-8-SIV derivatives have been synthesized by cyclization with P2S5 of the corresponding 2,5-dibenzoylcyclopentanone and 2,6-dibenzoylcyclohexanone derivatives in toluene.