成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List 4-Hydroxyphenylacetone
770-39-8

4-Hydroxyphenylacetone synthesis

7synthesis methods
-

Yield:-

Reaction Conditions:

with chloro-trimethyl-silane;sodium iodide in diethyl ether;acetonitrile

Steps:

2-Methyl-2-(4-hydroxyphenyl)methyl-1,3-dioxalane STR52
2-Methyl-2-(4-hydroxyphenyl)methyl-1,3-dioxalane STR52 To a mixture of sodium iodide (51 g) and 1-(4-benzyl-oxyphenyl)propan-2-one (53 g) in acetonitrile (250 ml) at 50° was added chlorotrimethylsilane (43 ml) with vigorous stirring. After 2 hours the reaction was cooled and quenched with methanol (25 ml). The solvent was evaporated and the residue dissolved in diethyl ether, the organic phase was washed with saturated sodium thiosulphate solution. Extraction of the resultant ethereal solution with sodium hydroxide solution (10% w/v), acidification of the aqueous phase, extraction with dichloromethane, drying and evaporation of the organic extract afforded 1-(4-hydroxyphenyl)-propan-2-one as an oil.

References:

Beecham Group P.L.C. US4622342, 1986, A

FullText

4-Hydroxyphenylacetone Related Search: