3-(o-fluorophenyl)-5,6-dihydro-8-methoxyfuro[3,2-f]-1,2-benzisoxazole-6-carboxylic acid

Base Information

Chemical Name:3-(o-fluorophenyl)-5,6-dihydro-8-methoxyfuro[3,2-f]-1,2-benzisoxazole-6-carboxylic acid
CAS No.:90247-12-4
Molecular Formula:C₁₇H₁₂FNO₅
Molecular Weight:329.284
Hs Code.:

Synonyms:3-(o-fluorophenyl)-5,6-dihydro-8-methoxyfuro[3,2-f]-1,2-benzisoxazole-6-carboxylic acid

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Chemical Property of 3-(o-fluorophenyl)-5,6-dihydro-8-methoxyfuro[3,2-f]-1,2-benzisoxazole-6-carboxylic acid

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Technology Process of 3-(o-fluorophenyl)-5,6-dihydro-8-methoxyfuro[3,2-f]-1,2-benzisoxazole-6-carboxylic acid

There total 9 articles about 3-(o-fluorophenyl)-5,6-dihydro-8-methoxyfuro[3,2-f]-1,2-benzisoxazole-6-carboxylic acid 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: 63.0%

: 90247-02-2
ethyl 5,6-dihydro-3-(o-fluorophenyl)-8-methoxyfuro<3,2-f>-1,2-benzisoxazole-6-carboxylate

: 90247-12-4
3-(o-fluorophenyl)-5,6-dihydro-8-methoxyfuro[3,2-f]-1,2-benzisoxazole-6-carboxylic acid

Guidance literature:: With potassium hydroxide; In methanol; for 1h;
DOI:10.1021/jm00374a014

Reference yield:

: 19283-70-6
3,4-dimethoxysalicylaldehyde

: 90247-12-4
3-(o-fluorophenyl)-5,6-dihydro-8-methoxyfuro[3,2-f]-1,2-benzisoxazole-6-carboxylic acid

Guidance literature:: Multi-step reaction with 9 steps

1: K₂CO₃ / butan-2-one / 4 h / Heating

2: ethanolic KOH

3: aq. NaOH, 5percent sodium amalgam / 5 h

4: H₂SO₄ / Ambient temperature

5: 32 percent / AlCl₃ / 1,2-dichloro-ethane / 3.75 h / 5 - 20 °C

6: 18 percent / NH₂OH*HCl, pyridine / 4 h / Heating

7: 1 h / 90 °C

8: NaH / dimethylformamide / 4 h / Ambient temperature

9: 63 percent / aq. KOH / methanol / 1 h

With pyridine; potassium hydroxide; sodium hydroxide; sodium amalgam; aluminium trichloride; sulfuric acid; hydroxylamine hydrochloride; sodium hydride; potassium carbonate; In methanol; 1,2-dichloro-ethane; N,N-dimethyl-formamide; butanone;
DOI:10.1021/jm00374a014

Reference yield:

: 76313-60-5
6,7-dimethoxybenzofuran-2-carboxylic acid

: 90247-12-4
3-(o-fluorophenyl)-5,6-dihydro-8-methoxyfuro[3,2-f]-1,2-benzisoxazole-6-carboxylic acid

Guidance literature:: Multi-step reaction with 7 steps

1: aq. NaOH, 5percent sodium amalgam / 5 h

2: H₂SO₄ / Ambient temperature

3: 32 percent / AlCl₃ / 1,2-dichloro-ethane / 3.75 h / 5 - 20 °C

4: 18 percent / NH₂OH*HCl, pyridine / 4 h / Heating

5: 1 h / 90 °C

6: NaH / dimethylformamide / 4 h / Ambient temperature

7: 63 percent / aq. KOH / methanol / 1 h

With pyridine; potassium hydroxide; sodium hydroxide; sodium amalgam; aluminium trichloride; sulfuric acid; hydroxylamine hydrochloride; sodium hydride; In methanol; 1,2-dichloro-ethane; N,N-dimethyl-formamide;
DOI:10.1021/jm00374a014