8-(4-fluorophenyl)-7,8-dihydropyrano[3,4-e][1,3]oxazine-2,4(3H,5H)-dione

Base Information

Chemical Name:8-(4-fluorophenyl)-7,8-dihydropyrano[3,4-e][1,3]oxazine-2,4(3H,5H)-dione
CAS No.:1263868-86-5
Molecular Formula:C₁₃H₁₀FNO₄
Molecular Weight:263.225
Hs Code.:

Synonyms:8-(4-fluorophenyl)-7,8-dihydropyrano[3,4-e][1,3]oxazine-2,4(3H,5H)-dione

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Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

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Chemical Property of 8-(4-fluorophenyl)-7,8-dihydropyrano[3,4-e][1,3]oxazine-2,4(3H,5H)-dione

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Technology Process of 8-(4-fluorophenyl)-7,8-dihydropyrano[3,4-e][1,3]oxazine-2,4(3H,5H)-dione

There total 3 articles about 8-(4-fluorophenyl)-7,8-dihydropyrano[3,4-e][1,3]oxazine-2,4(3H,5H)-dione 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: 38.0%

: 1263868-85-4
3-(4-fluorophenyl)-dihydro-2H-pyran-4(3H)-one

: 27738-96-1
chlorocarbonyl isocyanate

: 1263868-86-5
8-(4-fluorophenyl)-7,8-dihydropyrano[3,4-e][1,3]oxazine-2,4(3H,5H)-dione

Guidance literature:: at 58 - 130 ℃; Inert atmosphere;

Reference yield:

: 84302-42-1
2,3-dihydro-4H-pyran-4-one

: 1263868-86-5
8-(4-fluorophenyl)-7,8-dihydropyrano[3,4-e][1,3]oxazine-2,4(3H,5H)-dione

Guidance literature:: Multi-step reaction with 3 steps

1: pyrrolidone hydrotribromide / tetrahydrofuran / 0 - 20 °C

2: diethyl ether; benzene / 0.67 h / 0 - 20 °C

3: 58 - 130 °C / Inert atmosphere

With pyrrolidone hydrotribromide; In tetrahydrofuran; diethyl ether; benzene;

Reference yield:

: 98021-79-5
3-bromo-tetrahydro-pyran-4-one

: 1263868-86-5
8-(4-fluorophenyl)-7,8-dihydropyrano[3,4-e][1,3]oxazine-2,4(3H,5H)-dione

Guidance literature:: Multi-step reaction with 2 steps

1: benzene / 0.67 h / 0 - 20 °C

2: 3 h / 58 - 130 °C / Inert atmosphere

In benzene;