ethyl 4-(7-(benzyloxy)-3,4-dihydro-5-methyl-4-oxo-2H-chromen-2-yl)-3-oxobutanoate

Base Information

Chemical Name:ethyl 4-(7-(benzyloxy)-3,4-dihydro-5-methyl-4-oxo-2H-chromen-2-yl)-3-oxobutanoate
CAS No.:881308-37-8
Molecular Formula:C₂₃H₂₄O₆
Molecular Weight:396.44
Hs Code.:

Synonyms:ethyl 4-(7-(benzyloxy)-3,4-dihydro-5-methyl-4-oxo-2H-chromen-2-yl)-3-oxobutanoate

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Chemical Property of ethyl 4-(7-(benzyloxy)-3,4-dihydro-5-methyl-4-oxo-2H-chromen-2-yl)-3-oxobutanoate

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Technology Process of ethyl 4-(7-(benzyloxy)-3,4-dihydro-5-methyl-4-oxo-2H-chromen-2-yl)-3-oxobutanoate

There total 4 articles about ethyl 4-(7-(benzyloxy)-3,4-dihydro-5-methyl-4-oxo-2H-chromen-2-yl)-3-oxobutanoate which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 67.0%

: 881308-36-7
7-(benzyloxy)-5-methyl-4H-chromen-4-one

: 89186-81-2
1-ethoxy-1,3-bis[(trimethylsilyl)oxy]buta-1,3-diene

: 881308-37-8
ethyl 4-(7-(benzyloxy)-3,4-dihydro-5-methyl-4-oxo-2H-chromen-2-yl)-3-oxobutanoate

Guidance literature:: 7-(benzyloxy)-5-methyl-4H-chromen-4-one; With trimethylsilyl trifluoromethanesulfonate; at 20 ℃; for 0.5h;

1-ethoxy-1,3-bis[(trimethylsilyl)oxy]buta-1,3-diene; In dichloromethane; at 0 - 20 ℃; for 12h;
DOI:10.1002/chem.200501024

Reference yield:

: 881308-35-6
7-hydroxy-5-methyl-4H-chromen-4-one

: 881308-37-8
ethyl 4-(7-(benzyloxy)-3,4-dihydro-5-methyl-4-oxo-2H-chromen-2-yl)-3-oxobutanoate

Guidance literature:: Multi-step reaction with 2 steps

1.1: 76 percent / K₂CO₃ / ethanol / 7 h / Heating

2.1: Me₃SiOTf / 0.5 h / 20 °C

2.2: 67 percent / CH₂Cl₂ / 12 h / 0 - 20 °C

With trimethylsilyl trifluoromethanesulfonate; potassium carbonate; In ethanol;
DOI:10.1002/chem.200501024

Reference yield:

: 504-15-4
orcinol

: 881308-37-8
ethyl 4-(7-(benzyloxy)-3,4-dihydro-5-methyl-4-oxo-2H-chromen-2-yl)-3-oxobutanoate

Guidance literature:: Multi-step reaction with 4 steps

1.1: 41 percent / ZnCl₂ / diethyl ether / 3 h / 20 °C

2.1: 56 percent / perchloric acid / 12 h / 0 - 20 °C

3.1: 76 percent / K₂CO₃ / ethanol / 7 h / Heating

4.1: Me₃SiOTf / 0.5 h / 20 °C

4.2: 67 percent / CH₂Cl₂ / 12 h / 0 - 20 °C

With perchloric acid; trimethylsilyl trifluoromethanesulfonate; potassium carbonate; zinc(II) chloride; In diethyl ether; ethanol;
DOI:10.1002/chem.200501024