Tuberose odor

R = CH2C6Hs, C14H12O2, Mr 212.25, 6p2.okPa 170-171 °C, df 1.1121, ng 1.5680, is the main component of Peru balsam oil. It occurs in fairly large amounts in a number of blossom concretes and absolutes (e.g., tuberose and hyacinth). It forms either a viscous liquid or solid flakes mp 21 22°C) and has a weak, sweet-balsamic odor. It is prepared either by transesterification of technical methyl benzoate with benzyl alcohol, or from benzyl chloride and sodium benzoate. A third process starts with benzaldehyde which is converted in high yield into benzyl benzoate in the presence of sodium or aluminum benzylate (Tishchenko reaction). 

Tuberose absolute is obtained by solvent extraction, via the concrete, from the blossoms of Polianthes tuberosa L. (Agavaceae). The plants are cultivated in Egypt and India. Tuberose absolute was formerly produced in southern France by enfieurage. It is an orange to brown liquid with a sweet-narcotic blossom odor and is used in modern, flowery perfume compositions. Its main constituents are esters of benzoic acid [801, 802], FCT 2000 (38, suppl. 3) p. S231, [8024-05-3], [94334-35-7],... 

By Enfleurage.—There are certain flowers, the odors of which are so delicate that they will not bear even the little heat used in the preoeding method and For these the process of enfleurage or absorption is employed. Jessamine, mignonette, tuberose, and similar flowers, belong to this category. 

Knowing (Lauder 1988), although launched 15 years after Coriandre follows a very similar pattern, and the two perfumes are closely related in odor. In Knowing there is the addition of a fruity-tuberose character and heliotropin, with the woody side dominated by vetiver and a small amount of Iso E super. A number of other trace auxiliary notes have also been added. 

C oH 02, Mr 168.24. A liquid with a fruity-flowery odor, bp. 95-96°C (40Pa). (-)-d-J. ([aJu -30.4°, neat), found, among others, in jasmin(e) absolute and tea flavor, (+)-d-J. occurs in tuberose absolute, peach and mango flavor. For general and stereoselective syntheses, see Lit.. The peach-like smelling y-J. in the (+)-form contributes to the flavors of peach, mango, and yellow passion fruit. For analysis and preparative chromatographic separation of the enantiomers, see Lit., biosynthesis Lit.. The jasmolac-tones A-D are bicyclic structures. ... 

Occurrence In many flowers (oils), e.g., wallflower, jasmin(e) absolute, orange oils, tuberose absolute, and ylang-ylang oil as well as the juice of the Concord grape (Vitis labrusca). M. is also responsible for the characteristic odor of the fruit bodies of Cortina-rius odoratus and Hygrophoropsis olida. 

Tuberose absolute. Yellowish-brown to reddish-brown, slightly viscous oil with a heavy, honey-like sweet, anesthetizing, flowery odor that is often found to be pleasant on dilution. 

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