A aromatic

S. Coffey, ed., Kodd s Chemistry of Carbon Compounds, 2nd ed., Vol. Ill, Tart A., Aromatic Compounds, Elsevier Publishing Company, New York, 1971, p. 23. 

Fig. 6. Boiling points of C —hydrocarbons. P, iso and normal paraffins C, C - and Cg-cycloparaffins and A, aromatics.

L. Fishbeia, "Anthropogenic Compounds," ia G. Hutziager, A., Aromatic Amenes, The Handbook of Environmental Chemistry, Vol. 3, Spriager-Vedag, Berlin, Heidelberg, New York, Tokyo, 1984. 

The hydrogenation of ring A aromatic steroids over ruthenium occurs, almost invariably, from the a side and all substituents on the original aromatic ring are cis in the resulting cyclohexane. Estrone (62) is hydrogenated over ruthenium to 5a,10a-estrane-3/3,17j6-diol (63) in 85-90% yield. 

Hydrogenation of monoenes, 123 Hydrogenation of ring A aromatic steroids, 138... 

The lack of oral activity of progesterone proper has already been mentioned. Even after the orally active 19-nor agents, which showed progestational activity, had been elaborated, the search continued for an orally active compound that contained the full pregnane nucleus (115). At the time such a compound would have had the economic advantage of sidestepping the then burdensome ring A aromatization reactions. 

Aromaten, pi. aromatic substances, aromatisch, a. aromatic. — aromatisches Mittel, (Pharm.) aromatic.—aromatische Reihe, aromatic series. 

Morgante, A., Aromatic polycyclic hydrocarbons in coffee, Riv. Merceol., 19, 215, 1980. (CA94 173070s)... 

Pines, A., Aromatic Carbon Contents of Coals, SRCs, and Residues Were Determined by CP-l C-NMR", Under a Subcontract to EPRI, RP-410-1. 

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