Alcohol triphenylmethyl (trityl) ethers were readily and efficiently transformed into the corresponding acetates by reaction with acetyl bromide. Triphenylmethyl ethers can also be transformed into the corresponding substituted acetates in high yields by the use of various substituted acetyl chlorides combined with sodium iodide.
SOLUBILIZING AGENTS FOR ACTIVE OR FUNCTIONAL ORGANIC COMPOUNDS
申请人:ISP Investiments Inc.
公开号:EP1802290A2
公开(公告)日:2007-07-04
EP1802290A4
申请人:——
公开号:EP1802290A4
公开(公告)日:2009-08-19
US4464290A
申请人:——
公开号:US4464290A
公开(公告)日:1984-08-07
[EN] SOLUBILIZING AGENTS FOR ACTIVE OR FUNCTIONAL ORGANIC COMPOUNDS<br/>[FR] AGENTS DE SOLUBILISATION DESTINES A DES COMPOSES ORGANIQUES FONCTIONNELS OU ACTIFS
申请人:ISP INVESTMENTS INC
公开号:WO2006041506A2
公开(公告)日:2006-04-20
An active or functional organic compound is solubilized in a diaryl organic compound having a polar or polarizable functional group therein, as a solvent, cosolvent or additive, to form a composition thereof. 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.