Tolyl Orange

When styrene is added to HNi[P(0-o-tolyl)3]3CN, the solution goes from yellow to red and the hydride is quantitatively converted to alkyl complex. However, addition of excess styrene to HNiL3CN—B(p-tolyl)3 causes a color to change to orange and leaves most of the nickel as hydride complex, as shown by both IR and NMR spectroscopy. Thus, the Lewis acid decreases the equilibrium constant for reaction (26) relative to reaction (25). 

Di-p-tolyl diselenide, (C6H4.CH3)2Se2, from p-selenocresol, separates from alcohol as orange needles, M.pt. 47° C. 

Chromium penta-p-tolyl carbonate, [(C7H7)5Cr]2C03.6H20.— When the crude bromides are treated with caustic alkali a solution of chromium penta-p-tolyl hydroxide is obtained, which passes into the carbonate. This salt forms orange crystals, M.pt. 139° to 140° C., soluble in alcohols, chloroform or nitrobenzene, sparingly soluble in water or cyclohexanol, insoluble in ether. 

Butyl lithium (10 ml, 1.64 mol in hexane) was added under nitrogen to a stirred suspension of triphenyl-2-pyrrolidinoethylphosphonium bromide (7.2 g) in dry toluene (75 ml). After 0.5 h, ((E)-3-(6-(4-toluoyl)-2-pyridyl)acrylate, vide supra, (4.8 g) in toluene (50 ml) was added. The suspension, initially orange, became deep purple, then slowly faded to yellow during 2 h heating at 75°C. The cooled solution was diluted with ether (150 ml) and treated with hydrochloric acid (50 ml, 2 mol). The aqueous phase was separated, washed with ether, and basified with potassium carbonate (ice) and extracted with ether. The mixture of isomeric esters obtained by evaporation was dissolved in ethanol (100 ml) containing sodium hydroxide solution (20 ml, 1 mol) and partially evaporated on the steam bath under reduced pressure for 5 min. The residual aqueous solution was neutralized with sulfuric acid (20 ml, 0.5 mol) and evaporated to dryness. The solid residue was extracted with hot isopropanol (3x50 ml) and the extracts were concentrated until crystallization commenced. The (E)-3-(6-(3-pyrrolidino-l-(4-tolyl)prop-l-(E)-enyl)-2-pyridyl)acrylic acid, melting point 222°C (dec. recrystallization from isopropanol) was obtained. 

Tin di-p-tolyl is an orange-yellow, amorphous powder, softening at 109° C., and melting to a clear, dark red liquid at 111 5° C. on further heating it becomes turbid, and tin separates out at 245° C. It dissolves in benzene in all proportions, readily in ether, but is insoluble in alcohol. The solutions resemble potassium diehromate in colour, and blacken alcoholic silver nitrate. It is not so readily oxidised in air as the phenyl compound. 

Orange picolinaldiminato complexes [PdCl2(NC5H4CH=NR)] (R = p-tolyl, Bu", Pr , Et, or benzyl) have been synthesized [equation (9)]. ... 

Tris(tri-o-toIyI phosphite)nickel(O) is a bright red-orange solid which decomposes above ca. 125-140°. The 407-nm. peak has e = 5.0 x 103 cm.-1 M 1 and the 450-nm. shoulder has e = 3.7 x 103 cm.-1 M-1. The n.m.r. signal of the methyl hydrogens in free tri-o-tolyl phosphite is at 2.11 p.p.m. down field from internal tetramethylsilane in benzene solution, while the methyl resonance of coordinated tri-o-tolyl phosphite is only 1.96 p.p.m. down field. 

Citral Coumarin trans-trans-2,4-Decadienal Diethyl phthalate Dihydrosafrole Ethyl maltol Maltol Menthol Orange (Citrus aurantium dulcis) peel wax Peppermint spirit o-Tolyl aldehyde 3,5,5-Trimethylhexyl acetate fragrance, pomades... 

Phenyl ether phenyl o-tolyl ether. CisHjjO. MW, 184. Needles. M.p. 22°. B.p.267°/738mm. Pierate orange needles. M.p. 88°. 

Ethyl 3-methyl 5-oxo-4-((2-phenylpropyl) amino)-1 -(p-tolyl)-2,5-dihydro- l//-pyirole-2,3 -dicarboxylate (6b) Light orange solid, mp 148-150 °C yield 55%... 

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