Dating 7lake ru
Representative active or functional organic compounds include those present in personal care products, e.g., sunscreens containing UVA/UVB absorbing compounds, such as avobenzone, benzophenone-3, and 4-methylbenzylidene camphor.
Such compositions also show increased SPF, UVA/UVB absorbance ratio, and critical wavelength performance properties.
Another object is to provide a personal care, e.g., a sunscreen, cosmetic, pharmaceutical, agricultural or industrial composition containing a solid active or functional organic compound which is solubilized therein.
Personal care products are used to give polymeric substrates such as hair and skin a desired property such as body, hold or color.
(Λ/,Λ/-Dimethylformamide is not acceptable in personal care applications.) Finally, 2-phenylethyl benzoate has been prepared from 2-phenylethanol and benzoyl chloride in acetonitrile solvent with Zn Cb reagent (Kim et al., Synth.
(Oxalyl chloride is a toxic liquid and produces carbon , monoxide, a toxic gas; pyridine has a sickening odor and adverse health effects.) Similarly, 2-phenylethanol and benzoic acid have been condensed in tetrahydrofuran solvent with the aid of a stoichiometric 3-methylbenzothiazole- 2-selone/diethyl azodicarboxylate/Λ/,/V-dimethylaniline reagent (Mitsunobu et al., Chem.
1984, 855-858) or a stoichiometric triphenylphosphine/S- benzyl-S-phenyl-/V-p-tosylsulfilimine reagent (Aida et al., Chem.