Violet oil

The above remarks apply to the commercial product known as ionone. There are, however, numerous other patents in existence for the preparation of artificial violet oil. The complete specification of one of these reads as follows —... 

Veilchen-holz, n. violet wood, -keton, n. ionone. -ol ri. violet oil. -stein, m. iolite. -wurzel, -wurz,/. orris root. 

This ds-alkene is a component of violet oil, and is an intermediate in the synthesis of a violet oil component, FGI to the alkyne reveals two further disconnections that make use of alkyne alkylations. The reagent we need for the first of these is, of course, the epoxide as there is a 1,2-relationship between the OH group and the alkyne. 

Our next target is an allylic alcohol that produces the perfumery compound violet leaf alcohol by a rearrangement step, Two disconnections are possible, but one of them, (a), leads back to a Grignard reagent that can be made by FGI on the violet oil component whose synthesis we described on p. 785. 

In the 19th century, the scent of violets enjoyed a renaissance. By enfleurage of the English violet (or wood violet, Viola odorata L) (Fig. 3.13), the readily volatile components were extracted and thus made accessible for fine perfumery. The price for one kilogram of violet oil in 1904 was estimated at 80,000 German Goldmarks, which corresponds to about 400,000 Euro. [48]... 

VI. Terpeneless Oils. Terpeneless Oil of Lemon, Tables of sp.-gr. and Rotn. of several Terpeneless Oils, Terpeneless Oil of Orange, Ditto of Caraway, of Lavender, Table of. sp.-gr. and Rotn. of Commercial Samples of Oils.—VII. The Chemistry of Artificial Perfumes. Vanillin, Coumarin, Fleliotropin, Aubepine or Flawthorn, lonone. Specification of Patents for Preparation of lonone, for Artificial Violet Oil, Artificial Musk, Specification of Patent of Musk Substitute, Artificial Neroli, Artificial Lilac, Artificial Hyacinth, Artificial Lemon Oil, Artificial Rose Oil, Niobe Oil, Bergamiol, Artificial Jasmin Oil, Artificial Cognac Oil.— Appendix. Table on Constants of the more Important Essential Oils.—Indexl... 

Kerosene Kerosine Sesame Oil Petrolatum Nujol Cherry Juice Ethereal Oils Cherry Syrup Bitter Almond Oil Fuming Suifuric Acid Oleum Violet Oil Walnut Oil Verbena Oil Green Soap Beer Butter Corn Syrup Naphtha Soy Sauce Li groin Cetavlon Quinine Sulfate Rosin Bitumen 2-Bromobutyric Acid Sodium Lignosulfonate Methyl Methacrylate Clophen A50 Aluminum Oxalate Calcium Salicylate o-Cresotinic Acid WD 40... 

Used in photometric detn. of Ir. Heavy dark-red-violet oil. 

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