Pine-like

The white pine, like most of its allies among the Coniferse, bears cones. These structures are of two kinds, viz. staminate and car-pellate. Both kinds are produced on the same tree. 

Atropine was isolated by Mein in 1831 (58), and since then the synthesis of both atropine and scopolamine has been achieved (59,60). A biogenetic scheme for the synthesis of atro-pine-like alkaloids in datura species starting from ornithine has been described (61). 

The odor is warm-fruity, caramellic-sweet with emphasis on the caramellic note in the dry state, while solutions of maltol show a pronounced fruity, jam-like odor of pineapple, strawberry-type. Depending of the solvent, sometimes more balsamic, pine-like with fruity undertones (Arctander, 1967). The measured flavor threshold in water is 20.0ppm (Brule et al, 1971) or 7.1 ppm (Keith and Powers, 1968). 

Yellowish to greenish, viscid, transparent, slightly fluores -cent liquid agreeable, aromatic pine-like odor bitter taste on exposure to air gradually solidifies to a solid, noncryst mass, d 0.987-0.994. r 1.52-1.54. +1° to+4 - Acid... 

Properties YIsh.-grnsh. liq., pine-like odor, bitter taste sol. in ether misc. with benzene, chloroform insol. in water dens. 0.987-0.994 acid no. 80-95 ref. index 1.5190-1.5240 (20 C) Toxicology LD50 (oral, rat) > 5 g/kg, (skin, rabbit) > 5 g/kg low toxicity by ing. and skin contact TSCA listed... 

Synonyms Benzene, 1-methyl-4-(1-methylethenyl)- Dehydro p-cymene a,4-Dimethylstyrene o,p-Dimethylstyrene 4-Isopropenyl toluene p-lsopropenyl toluene 1-Methyl-4-isopropenylbenzene 1-Methyl-4-(1-methylethenyl) benzene 4-Methyl-a-methylstyrene p-Methyl-o-methylstyrene 2-(p-Methylphenyl) propene Styrene, p,a-dimethyl- 2-p-Tolyl propene Empirical C10H12 Formula CH3C6H4C(CH3)CH2 Properties Colorless liq. citrus, pine-like odor on dil. sol. in alcohol insol. in water m.w. 132.22 sp.gr. 0.894-0.904 m.p. -28 C b.p. 186-190 C flash pt. (CC) 62 C ref. index 1.530-1.539 (20 C) Toxicology Irritating to eyes, skin, respiratory system may be harmful by ing., inh., skin absorp. vapor/mist irritating to eyes, mucous membranes, upper respiratory tract TSCA listed... 

The pine-like Ag and Cu dendrites shown in Fig. 6.2a, b were electrodeposited inside the plateaus of the limiting diffusion current density [20]. The Ag dendrites were also formed outside the plateau of the limiting diffusion current density in the zone of a sharp increase in the current density with an increase in the overpotential (Fig. 6.2c). 

Also another /r-menthenic terpene, y-terpinene, was screened as a substrate to afford a mixture of characteristically smelling /rara-menthenic aldehydes with about 90% combined yields under relatively mild conditions (80 C, 80 atm) (Scheme 6.32) [119]. y-Terpinene is a naturally occurring compound. In a pure state, it is a colorless, pine-like fragrant oil, which is contained in many essential oils, especially citrus and spice. 

Mild pine-like Rotten apple Rancid (hazelnut) Green-beany Beany... 

Chemical Designations — Synonyms Limonene para-Mentha-1,8-diene Phellandrene Terpinene delta-1,8-Terpodiene Chemical Formula C, )H j. Observable Characteristics — Physical State (as normally shipped) Liquid Color Colorless Odor Pleasant, pine-like lemon-like. Physical and Chemical... 

Table 20.5 shows the odorants of dried hops. The occurrence of undecatriene and -tetraene, which have a balsam-like, aromatic and pine-like odor, is remarkable. These hydrocarbons, and particularly myrcene and linalool belong to the compounds which produce the characteristic odor of hops. 

Fresh, warm, rich, sweet woody and pine-like. 

G. oil is a colorless to pale-yellow liquid with a typical, intense and diffusive leafy green odor that is reminiscent of pea-pods or green peppers with slight pine-like woody undertones. The resinoid is a semiliquid, amber-colored material that possesses the same green vegetable-like notes as the oil but with a more rich, balsamic, woody-resinous quality. 

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