7-acetoxy-2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-4H-benzopyran-4-one

Base Information

Chemical Name:7-acetoxy-2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-4H-benzopyran-4-one
CAS No.:134178-17-9
Molecular Formula:C₂₅H₃₀O₇Si
Molecular Weight:470.595
Hs Code.:

Synonyms:7-acetoxy-2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-4H-benzopyran-4-one

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Chemical Property of 7-acetoxy-2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-4H-benzopyran-4-one

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Technology Process of 7-acetoxy-2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-4H-benzopyran-4-one

There total 6 articles about 7-acetoxy-2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-4H-benzopyran-4-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: 96.0%

: 108-24-7
acetic anhydride

: 134178-15-7
2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-7-hydroxy-4H-benzopyran-4-one

: 134178-17-9
7-acetoxy-2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-4H-benzopyran-4-one

Guidance literature:: With pyridine; for 3h; Ambient temperature;
DOI:10.1021/jo00016a015

Reference yield:

: 884-35-5
methyl syringate

: 134178-17-9
7-acetoxy-2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-4H-benzopyran-4-one

Guidance literature:: Multi-step reaction with 4 steps

1: 97 percent / N,N-diisopropylethylamine / dimethylformamide

2: LiHMDS / THF 1) 1 h, -78 deg C 2) 2 h, -10 deg C 3) 1 h, -78 deg C 4) 16 h, r.t.

3: 92 percent / conc. H₂SO₄ / acetic acid / 1) 30 min, r.t. 2) 2 h, 0 - 5 deg C

4: 96 percent / pyridine / 3 h / Ambient temperature

With pyridine; sulfuric acid; N-ethyl-N,N-diisopropylamine; lithium hexamethyldisilazane; In acetic acid; N,N-dimethyl-formamide;
DOI:10.1021/jo00016a015

Reference yield:

: 134178-07-7
methyl 4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxybenzoate

: 134178-17-9
7-acetoxy-2-<4-<(tert-butyldimethylsilyl)oxy>-3,5-dimethoxyphenyl>-4H-benzopyran-4-one

Guidance literature:: Multi-step reaction with 3 steps

1: LiHMDS / THF 1) 1 h, -78 deg C 2) 2 h, -10 deg C 3) 1 h, -78 deg C 4) 16 h, r.t.

2: 92 percent / conc. H₂SO₄ / acetic acid / 1) 30 min, r.t. 2) 2 h, 0 - 5 deg C

3: 96 percent / pyridine / 3 h / Ambient temperature

With pyridine; sulfuric acid; lithium hexamethyldisilazane; In acetic acid;
DOI:10.1021/jo00016a015