ortho-nitrotoluene

ortho-nitrotoluene

[¦ȯr·thō ¦nī·trō′täl·yə‚wēn]
(organic chemistry)
NO2C6H4CH3 A yellow liquid boiling at 220.4°C; insoluble in water; used to produce toluidine and dyes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Effect of catalyst to toluene ratio Catalyst/ Percent ONT MNT PNT Others Para/ Tol(g/mol) Tol ortho conversion ratio Nil 27.4 16.90 1.00 7.08 2.46 0.42 2.26 34.9 22.05 1.75 8.57 2.50 0.39 4.50 38.5 23.19 1.49 11.70 2.17 0.50 6.80 38.2 22.92 1.47 11.67 2.14 0.51 9.10 38.4 23.12 1.48 11.69 2.11 0.51 Toluene/nitric acid (molar ratio) = 2.2:1.4; agitation speed = 200 rpm; temperature under reflux =120[degrees]C; time = 3 h; batch experiments with azeotropic water removal; ONT: ortho-nitrotoluene; MNT: meta-nitrotoluene; PNT: para-nitrotoluene.
Conventional nitrating agents like nitric acid alone or in combination with acetic anhydride, mixed acids, nitrogendioxide (Radoslaw and Smallridge, 2001), acyl nitrates (benzoyl and acetyl), and alkyl nitrates continue to engage the attention of some researchers (Olah et al., 1989) which resulted in achieving improved para-selectivity (defined as the molar ratio of para- and ortho-nitrotoluenes) although their commercial viability is questionable.