8,8-dimethyl-3-(4-nitro-benzoyl)-8H-pyrano[2,3-f]chromen-2-one

Base Information

• Chemical Name: 8,8-dimethyl-3-(4-nitro-benzoyl)-8H-pyrano[2,3-f]chromen-2-one
• CAS No.: 310403-17-9
• Molecular Formula: C₂₁H₁₅NO₆
• Molecular Weight: 377.353
• Mol file: 310403-17-9.mol

Synonyms:8,8-dimethyl-3-(4-nitro-benzoyl)-8H-pyrano[2,3-f]chromen-2-one

Chemical Property of 8,8-dimethyl-3-(4-nitro-benzoyl)-8H-pyrano[2,3-f]chromen-2-one

Chemical Property:

Purity/Quality:

Safty Information:

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Technology Process of 8,8-dimethyl-3-(4-nitro-benzoyl)-8H-pyrano[2,3-f]chromen-2-one

There total 1 articles about 8,8-dimethyl-3-(4-nitro-benzoyl)-8H-pyrano[2,3-f]chromen-2-one 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:

2,4-dihydroxy-3-(3-methyl-2-but-en-1-yl)benzaldehyde (32268-30-7) → 8,8-dimethyl-3-(4-nitro-benzoyl)-8H-pyrano[2,3-f]chromen-2-one (310403-17-9)

Guidance literature:

2,4-dihydroxy-3-(3-methyl-2-but-en-1-yl)benzaldehyde; With polystyrene-based selenenyl bromide resin; In dichloromethane; at 0 - 25 ℃; for 0.333333h;

p-NO₂-C₆H₄C(O)CH₂COOR; With piperidine; at 95 ℃; for 2h;

With dihydrogen peroxide; In tetrahydrofuran; at 5 ℃; for 0.333333h; Further stages.;

DOI:10.1021/ja002033k

Reference yield:

8,8-dimethyl-3-(4-nitro-benzoyl)-8H-pyrano[2,3-f]chromen-2-one (310403-17-9) → 2,2-dimethyl-7-(4-nitro-benzoyl)-1a,9c-dihydro-2H-1,3,9-trioxa-cyclopropa[c]phenanthren-8-one

Guidance literature:

With 3,3-dimethyldioxirane; In acetone; at 0 ℃; for 1h;

DOI:10.1021/ja0020355

Reference yield:

8,8-dimethyl-3-(4-nitro-benzoyl)-8H-pyrano[2,3-f]chromen-2-one (310403-17-9) → 9,10-dihydroxy-8,8-dimethyl-3-(4-nitro-benzoyl)-9,10-dihydro-8H-pyrano[2,3-f]chromen-2-one

Guidance literature:

Multi-step reaction with 2 steps

1: dimethyldioxirane / acetone / 1 h / 0 °C

2: H₂O; amberlyst-15 [H⁺] resin / 0.5 h / 25 °C

With Amberlyst-15 (H⁺) resin; water; 3,3-dimethyldioxirane; In acetone;

DOI:10.1021/ja0020355

upstream raw materials:

2,4-dihydroxy-3-(3-methyl-2-but-en-1-yl)benzaldehyde