Granatic acid

The degradation of the alkaloid to a methylpyridine derivative can be effected through JV-methylgranatic acid (XV) and granatic acid (XVI). The latter, when heated with mercuric acetate and acetic acid at 150° yields 2-methylpyridinecarboxylic acid, which on distillation furnishes 2-methylpyridine. 

Granatic Acid (N MethylpiperidineA-carh. oxylic acid-2-acetie acid, homotropinic acid, 2 [N-methyl-4 -carboxypiperidyV]-acetic acid, N-methyl-2-earboxymethylpiperidine-4.carboxylic acid)... 

Granatic Acid (Ptperidine 2-carboxj/lic acid 6-acetic acid, 2-[6-carbozt/piperid /l -cicefic acid, 6-carboxjfinethj piperidine-2 earboxi/ltc acid) CH,... 

Granat L., Suksomsankh K., Simachaya S., Tabucanon M. and Rodhe H., 1996. Regional acidity and chemical composition of precipitation in Thailand. Atmospheric Environment, 30 1589-1596. 

On the other hand, the methiodide of pseudopelletierine is converted by distillation with baryta into an oily base which does not undergo the Hofmann degradation and is split by the action of hydrochloric acid into dimethylamine and granatal, a compound which contains no nitrogen (236). Furthermore, the methiodide of AT-methylgranatenine, when distilled at atmospheric pressure wth potassium hydroxide, gives rise also to an oily base which is decomposed by hydrochloric acid into dimethyl-... 

STENSLAND With respect to the partial pressure of CO2, you can see with the aid of Fig. 1, that we need to have about 1600 ppm instead 320 ppm to achieve an ion balance. This high value would not be present in the laboratory. With respect to the weak acid hypothesis, such an anion could produce the required ion balance. Based on conductivity data, Granat dismissed the idea that an Important ion was missing. At this time, I do not have enough conductivity data to rule out this possibility. 

Granat s chemical relationship for European rainwater assumes the following sources and acidities/alkalinities sulfuric acid from air pollutants with two equivalents of acidity per mole, nitric acid from air pollutants with one equivalent of acidity per mole, ammonia from air pollutants with one equivalent of alkalinity per mole, sea salt with negligible alkalinity, calcium soil dust with two equivalents of alkalinity per mole, magnesium soil dust with two equivalents of alkalinity per mole, and potassium soil dust with one equivalent of alkalinity per mole(3). Cogbill and Likens added hydrochloric acid air pollutants with one equivalent of acidity per mole for the northeastern United States calculations(4). 

L. Granat, Deposition of Sulphate and Acid with Precipitation over Northern Europe Institute of Meteorology, Stockholm, 1972. 

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