Essential oils phthalic esters

This alcohol, of the formula CjoHj O, occurs in the essential oil Bupleurum fi-uticomni, from which it was isolated hy Francesconi and Semagiottod It was separated hy means of its phthalic acid ester, and is an oil of faint rose odour, having the following characters —... [Pg.123]

The determination of esters derived from phthalic acid is also of great interest for the toxicity evaluation of an essential oil. Considering that esters commonly contained in essential oils are derived from monobasic acids, at rst, saponi cation is carried out through the addition of an etha-nolic potassium hydroxide solution. The formed potassium phthalate, which is not soluble in ethanol, generates a crystalline precipitate [17]. [Pg.198]

As the name indicates, saturated polyesters are polymers with ester linkages in their backbone. They are the condensation products of polyols and polybasic acids. The early development of saturated polyesters traces back to preparation of glyptal resins, formed from glycerol and phthalic anhydride, which are also the foundation for development of alkyd resins, as mentioned earlier. Though in a strictly chemical sense, the term polyester can also be applied to alkyd resins, the essential difference is the presence of oil or fatty... [Pg.57]

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