3,3,6,6-Tetramethyl-10-(4-methylphenyl)-3,4,6,7,9,10-hexahydro-1,8(2H,5H)-acridinedione

3,3,6,6-Tetramethyl-9-(2-nitrophenyl)-3,4,5,6,9,10-hexahydroacridine-1,8(2H,7H)-dione

“…1. Bond distances and angles of the acridine skeleton are in agreement with those of related acridine derivatives (Bundule et al, 1980;Selladurai, Subramanian & Natarajan, 1989;Selladurai, Subramanian & Ramakrishnan, 1990;Sivaraman, Subramanian, Velmurugan, Subramanian & Ramakrishnan, 1994;Sivaraman, Subramanian, Velmurugan, Subramanian & Shanmugasundram, 1996). Both outer six-membered rings of the acridine moiety adopt almost ideal envelope conformations, with puckering parameters (Cremer & Pople, 1975) Q -0.462 (2) and 0.461 (2)A, 0 = 123.5 (2) and 123.8 (2) °, and qD = 300.6(3) and 298.5 (3) °.…”

Crystal and Molecular Structure of 9-Methyl-3,4,6,7,910-hexahydro-2,2,8,8-tetramethyl 1,8-(2H,5H)- acridine-dione

“…The bond lengths and bond angles of the acridine moiety compare well with related structures (SELLADURAI et al, 1989(SELLADURAI et al, , 1990SIVARAMAN et al, 1994SIVARAMAN et al, , 1996GUNASEKARAN et al, 1996GUNASEKARAN et al, , 1997GANESH et al, 1998b). ORTEP (JOHNSON, 1976) diagram of the molecule with the numbering scheme is presented in Figure 2.…”

A Green Synthetic Approach Towards One Pot Multi Component Synthesis of Hexahydroquinoline and 9‐Arylhexahydroacridine‐1,8‐dione Derivatives Catalyzed by Sulphonated Rice Husk

“…[35] Acridine dyes can bind with photo damaged nucleic acids which have increasing interest as mutagens in micro-organisms. [36] The usefulness of acridines have led to the development of numerous methods of their synthesis by the three component Hantzsch condensation of aldehydes with β-diketones and ammonium acetate or appropriate primary amines. Many procedures describe the synthesis of acridinedione derivatives by cyclocondensation between dimedone and aldehyde and primary amine in the presence of heat in organic solvents with a varity of catalysts such as Fe 3 O 4 @B-MCM-41, [37] SO 4 2/TiO 2 NPs, [38] Scolecite, [39] Pd nanoparticle, [40] MNPsN-propyl-benzoguanamine-SO 3 H, [41] silica bonded N-propyl sulfamic acid [42] , CH 3 SO 3 H, [43] tetrabutylammonium hexatungstate, [44] nano TiO 2 , [45] SiO 2 /ZnCl 2 , [46] protic pyridinium ionic liquid, [47] CsCO 3 , [48] ceric ammonium nitrate, [49] organocatalysts, [50] Ni nanoparticles, [51] MgO, [52] thiamine hydrochloride, [53] SnO 2 , [54] La 2 O 3 /TFE (2,2,2-trifluoroethanol), [55] Cd(NO 3 ) 2 .4H 2 O.…”

“…Apart from the above applications, acridinediones also possess other important photo‐physical and electrochemical properties [35] . Acridine dyes can bind with photo damaged nucleic acids which have increasing interest as mutagens in micro‐organisms [36] . The usefulness of acridines have led to the development of numerous methods of their synthesis by the three component Hantzsch condensation of aldehydes with β‐diketones and ammonium acetate or appropriate primary amines.…”