2-diazo-malonic acid ethyl ester 9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-ylmethyl ester

Base Information

• Chemical Name: 2-diazo-malonic acid ethyl ester 9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-ylmethyl ester
• CAS No.: 754231-33-9
• Molecular Formula: C₃₄H₃₀N₂O₈
• Molecular Weight: 594.621

Synonyms:2-diazo-malonic acid ethyl ester 9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-ylmethyl ester

Chemical Property of 2-diazo-malonic acid ethyl ester 9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-ylmethyl ester

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Technology Process of 2-diazo-malonic acid ethyl ester 9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-ylmethyl ester

There total 1 articles about 2-diazo-malonic acid ethyl ester 9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-ylmethyl ester 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: 45.0%

chlorocarbonyl-diazo-acetic acid ethyl ester (57072-87-4) + [9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-yl]-methanol (754231-31-7) → 2-diazo-malonic acid ethyl ester 9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-ylmethyl ester (754231-33-9)

Guidance literature:

With 2,6-dimethylpyridine; dmap; In dichloromethane; at 0 - 20 ℃;

DOI:10.1016/j.tetlet.2004.06.064

Reference yield: 92.0%

2-diazo-malonic acid ethyl ester 9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-ylmethyl ester (754231-33-9) → 9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromene-5-carbaldehyde + ethyl 4-[3',3'-bis(4-methoxyphenyl)prop-2'-eneylidene]-1,5-dioxo-5,9b-dihydro-4H-2-oxacyclopenta[2,3]cyclopropa[1,2-a]naphthalene-9c-carboxylate

Guidance literature:

With dirhodium tetraacetate; In dichloromethane; at 20 ℃;

DOI:10.1016/j.tetlet.2004.06.064

upstream raw materials:

chlorocarbonyl-diazo-acetic acid ethyl ester

[9-methoxy-2,2-bis-(4-methoxy-phenyl)-2H-benzo[h]chromen-5-yl]-methanol

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