This research includes the synthesis of new bis-Schiff bases linked to different imide cycles. There were some steps involved in novel Schiff with succinimide, phthalimide, tetrachlorophthalimide, and tetrabromophthalimide The first step preparation 4,4`-bis[(4-aminophenyl) methyl benzylidene]tolidine (1) via condensation reaction 3,3'-dimethyl-(1,1'-biphenyl)-4,4'-diamine 4-amino acetophenone....

The phthalocyanine analogue containing nonperipheral long alkyl-substituted benzenoid rings and pyridine rings, zinc bis(1,4-didecylbenzo)-bis(2,3-pyrido) porphyrazine, was synthesized. Zinc bis(1,4-didecylbenzo)-bis(2,3-pyrido) porphyrazine reacted with dimethyl sulfate and monochloroacetic acid to produce their quaternized products and diethyl sulfate to produce the sulfo-substituted products...

the synthesis of 4-(substituted benzylidene)-2-(pyrazin-2-yl) oxazol-5(4h)-one was achieved in two steps, in first step, pyrazine-2-carboxamide  dissolved in etoh, 10% koh solution with clch2cooh produced compound 2-(pyrazine-2-carboxamido) acetic acid (ii) and in second step, compound (ii) in (ch3co)2o with aromatic aldehyde, and catalyst potassium acetate produced title compounds 4-(substitut...

Indium-mediated allylation of aldehydes with 2-chloro-3-iodopropene, followed by a palladium-catalyzed cross-coupling reaction with triarylindium reagents or arylboronic acids, leads to aryl-substituted homoallylic alcohols in good to excellent yields and diastereoselectivities. The products obtained from reactions conducted with d-glyceraldehyde acetonide can be transformed into 2-deoxy-beta-C...

Bulky 2,6-bis(spirocyclohexyl)-substituted piperidine rings in bis(hindered amino)trisulfide affords low chain-transfer constant and thermal healability at moderate temperature.

Calculations based on density functional methods are carried out to investigate the effects of a variety of substituents (NMe2, OMe, Me, F, H, Cl, CN, NO2) on the Mulliken charges (QM) for Cα and N atoms of N-(4-Substituted benzylidene)-1-phenylmethanamine oxide using Hammett’s MSP and Taft’s DSP equations. The MSP and DSP correlations give normal substituent effect at Cα and N atom sites. This...

A new series of 4-[3-chloro-2-(4-hydroxy-3-methoxybenzyllidene)-4-oxoazetidin-1-yl]amino-N-(substituted) benzenesulfonamide, 4-{3-chloro-2-[5-methoxy-2-nitro-4-(prop-2-en-1-yloxy)benzyllidene]-4-oxoazetidin-1-yl}]amino}-N(substituted)benzenesulfonamide and 4-{3-chloro-2-[4-hydroxy-3-methoxy-5-(prop-2-en-1-yl)benzylidene]-4-oxoazetidin-1-yl}amino}-N-(substituted) benzenesulfonamide were synthesi...