67634-00-8Relevant articles and documents
Synthetic method of propylene isopentoxy acetate perfume
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Paragraph 0027; 0031-0033; 0034; 0038-0040; 0041; 0045-0047, (2019/12/11)
The invention discloses a synthetic method of propylene isopentoxy acetate perfume. According to the invention, a Williamson reaction is replaced, and ethyl diazoacetate and isoamyl alcohol are subjected to an O-H insertion reaction under the catalytic action of the catalyst Rh2(OAc)4 to synthesize propylene isopentoxy acetate, so reaction time is greatly shortened; in addition, the prepared solidacid catalyst Yb-MoO3/Al2O3-ZrO2 has the advantages easy separation from a liquid-phase reaction system, no corrosion to equipment and simple aftertreatment, overcomes the problems that conventionalliquid acid corrodes equipment and acid-containing wastewater pollutes environment, and also has high selectivity; the synthetic method can be carried out at low temperature, reduces energy consumption and side reactions, and greatly improves production efficiency; the yield of the prepared propylene isopentoxy acetate perfume is as high as 98.4%; the propylene isopentoxy acetate perfume has goodheat stability, small possibility of loss of active components and good repeated use performance, and is a novel green catalytic material with great application potential.
ORTHOFORMIC ACID ESTERS AS PRO-FRAGRANCES
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, (2018/01/11)
The disclosure relates to special orthoformic acid esters of formula (I), as defined herein, which can be used as thermally labile and acid-labile fragrance storage substances. The disclosure further relates to detergents and cleaning agents, cosmetic agents and air freshening products containing such orthoformic acid esters, as well as to a method for lastingly fragrancing surfaces.