Some Reduced Naphthoquinones Containing an Angular Phenyl Group

The Oxynitration of Benzene. I. Studies Relating to the Reaction Mechanisms1

“…Thus Allen and Van Allan were able to establish that treatment of methylanhydroacetonebenzil with acid yielded a compound having an angular phenyl group.3 Also Allen, Bell, Clark and Jones have reported some reduced naphthoquinones having an angular phenyl group. 4 The angular aryl group is important in regard to the structures which have been proposed for morphine5 and for strychnine.6 Thus the Gulland and Robinson structure for morphine, as shown below in formula I, may be regarded as an octahydroisoquinoline derivative having an angular aryl group. The work to be described was carried out for the purpose of preparing some model compounds of relatively simple structure which would have an angular aryl group.…”

Efficient Synthesis of Symmetrical 2,5-Disubstituted Benzoquinones via Palladium-Catalyzed Double Negishi Coupling

“…The reaction was stirred for another 5 min and then quenched with water, which resulted in precipitation of the product. The precipitate was collected and dried to give 0.084 g (80%) of yellow crystals: mp 215−216 °C [recrystallized from pentane/CH 2 Cl 2 (lit . mp 217−218 °C)]; 1 H NMR δ 7.57−7.54 (m, 4 H) 7.48−7.46 (m, 6 H), 6.97 (s, 2 H); 13 C NMR δ 186.9, 145.6, 133.1, 132.5, 130.1, 129.3, 128.5; IR (KBr), 1641, 1604, 1440 cm -1 .…”

The Chemistry of the Alkali Amides.

“…An impure cerium (III) amide is obtained by the reaction of potassium amide on cerium (III) thiocyanate in liquid ammonia solution (12). Titanium (III) amide, Ti(NH2)3, is obtained as an insoluble, green-black, amorphous precipitate (somewhat contaminated with potassium ammonotitanate) by the reaction of potassium amide with K3Ti(SCN)e in liquid ammonia (79).…”

“…this becomes Ce2I3N2H3. There is some evidence for the existence of a soluble ammonobasic cerium(III) thiocyanate (12).…”

“…page 124; 84, page449), has been extended considerably(2,4,11,12,13, 15, 18, 34,105, 158, 159, 160, 162, 163, 169,170,171,172,185,292,293,296,544,600,601,614,661,729,760,778,798,846,869).…”