ethyl 8-benzyloxy-3-oxochromane-4-carboxylate

Base Information

Chemical Name:ethyl 8-benzyloxy-3-oxochromane-4-carboxylate
CAS No.:154810-65-8
Molecular Formula:C₁₉H₁₈O₅
Molecular Weight:326.349
Hs Code.:

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Chemical Property of ethyl 8-benzyloxy-3-oxochromane-4-carboxylate

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Technology Process of ethyl 8-benzyloxy-3-oxochromane-4-carboxylate

There total 7 articles about ethyl 8-benzyloxy-3-oxochromane-4-carboxylate 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: 23.0%

: 154810-64-7
(3-Benzyloxy-2-ethoxycarbonylmethoxy-phenyl)-acetic acid ethyl ester

: 154810-65-8
ethyl 8-benzyloxy-3-oxochromane-4-carboxylate

Guidance literature:: With ethanol; sodium; In toluene; for 2h; Heating;

Reference yield:

: 86734-59-0
3-benzyloxy-2-hydroxybenzaldehyde

: 154810-65-8
ethyl 8-benzyloxy-3-oxochromane-4-carboxylate

Guidance literature:: Multi-step reaction with 7 steps

1: 92 percent / potassium carbonate, potassium iodide / acetone / 5 h / Heating

2: 94 percent / sodium borohydride / ethanol / 0.5 h / 0 °C

3: 60 percent / thionyl dichloride, pyridine / diethyl ether / 1) 30 min, below 5 deg C; 2) 20 deg C, 1 h

4: 31 percent / potassium iodide / dimethylformamide / 3 h / 60 - 70 °C

5: aq. sodium hydroxide, hydrogen peroxide / 0.5 h / Heating

6: 76 percent / conc. H₂SO₄ / Heating

7: 23 percent / sodium, EtOH / toluene / 2 h / Heating

With pyridine; sodium hydroxide; sodium tetrahydroborate; thionyl chloride; ethanol; sulfuric acid; dihydrogen peroxide; sodium; potassium carbonate; potassium iodide; In diethyl ether; ethanol; N,N-dimethyl-formamide; acetone; toluene;

Reference yield:

: 101790-49-2
(2-Benzyloxy-6-formyl-phenoxy)-acetic acid ethyl ester

: 154810-65-8
ethyl 8-benzyloxy-3-oxochromane-4-carboxylate

Guidance literature:: Multi-step reaction with 6 steps

1: 94 percent / sodium borohydride / ethanol / 0.5 h / 0 °C

2: 60 percent / thionyl dichloride, pyridine / diethyl ether / 1) 30 min, below 5 deg C; 2) 20 deg C, 1 h

3: 31 percent / potassium iodide / dimethylformamide / 3 h / 60 - 70 °C

4: aq. sodium hydroxide, hydrogen peroxide / 0.5 h / Heating

5: 76 percent / conc. H₂SO₄ / Heating

6: 23 percent / sodium, EtOH / toluene / 2 h / Heating

With pyridine; sodium hydroxide; sodium tetrahydroborate; thionyl chloride; ethanol; sulfuric acid; dihydrogen peroxide; sodium; potassium iodide; In diethyl ether; ethanol; N,N-dimethyl-formamide; toluene;