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 Bromodiphenylmethane
776-74-9

Bromodiphenylmethane synthesis

13synthesis methods
-

Yield:954-67-6 71% ,776-74-9 17%

Reaction Conditions:

with N-Bromosuccinimide;triphenylphosphine in acetonitrile at 20; for 14 h;Cooling with ice;

Steps:

Typical procedure for the conversion of 3-phenylpropanol into 3-phenylpropyl acetate using Ph3P/Br2/NH4OAc

General procedure: To a solution of Ph3P(OAc)2, was added 3-phenylpropanol (1 mmol, 0.137 mL). The progress of the reaction was monitored by TLC (Table 3, entry 2). After completion of the reaction (0.3 h) the reaction mixture was filtered to remove the precipitated NH4Br followed by evaporation of the solvent. Column chromatography of the crude mixture on silica gel using n-hexane/EtOAc (3:1) as the eluent gave 3-phenylpropyl acetate in 90% yield (0.159 g).

References:

Iranpoor, Nasser;Firouzabadi, Habib;Elham, Etemadi Davan [Tetrahedron Letters,2013,vol. 54,# 14,p. 1813 - 1816]

Bromodiphenylmethane Related Search: