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 trans,trans-Dibenzylideneacetone
35225-79-7

trans,trans-Dibenzylideneacetone synthesis

6synthesis methods
-

Yield:35225-79-7 83%

Reaction Conditions:

with sulfuric acid in ethanol at 20;Aldol Condensation;

Steps:

4.1.3.2 Synthesis of MACs 1-3 and 5-8
General procedure: To a solution of benzylideneacetone (1) (5.2 mmol) in EtOH (10 mL) was added the respective benzaldehyde derivative (5.0 mmol). Catalytic amounts of H2SO4 were added to the reaction mixture, and the solution was stirred at room temperature for 24-48h. Reaction medium was poured onto crushed ice. The crude product was partitioned with ethyl acetate (3×25 mL), and the combined organic phase was concentrated under reduced pressure. MACs 1, 6 and 8 were purified by gel filtration column chromatography (LH-20) using EtOH as eluent. MAC 2 was recrystallized in EtOH. MACs 3, 5 and 7 were purified by column chromatography over silica gel using mixtures of hexane and ethyl acetate (4:1), (9:1) and (9:1) as mobile phases, respectively.

References:

Polaquini, Carlos R.;Marques, Beatriz C.;Ayusso, Gabriela M.;Mor?o, Luana G.;Sardi, Janaína C.O.;Campos, Débora L.;Silva, Isabel C.;Cavalca, Lúcia B.;Scheffers, Dirk-Jan;Rosalen, Pedro L.;Pavan, Fernando R.;Ferreira, Henrique;Regasini, Luis O. [Bioorganic Chemistry,2021,vol. 109,art. no. 104668]

FullText

trans,trans-Dibenzylideneacetone Related Search: