ethyl 4-oxo-2-phenyl-6-(triphenylphosphoranylideneamino)-4H-thieno<2,3-d><3,1>-oxazin-5-carboxylate

Base Information

• Chemical Name: ethyl 4-oxo-2-phenyl-6-(triphenylphosphoranylideneamino)-4H-thieno<2,3-d><3,1>-oxazin-5-carboxylate
• CAS No.: 147235-55-0
• Molecular Formula: C₃₃H₂₅N₂O₄PS
• Molecular Weight: 576.612

Synonyms:ethyl 4-oxo-2-phenyl-6-(triphenylphosphoranylideneamino)-4H-thieno<2,3-d><3,1>-oxazin-5-carboxylate

Chemical Property of ethyl 4-oxo-2-phenyl-6-(triphenylphosphoranylideneamino)-4H-thieno<2,3-d><3,1>-oxazin-5-carboxylate

Chemical Property:

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Technology Process of ethyl 4-oxo-2-phenyl-6-(triphenylphosphoranylideneamino)-4H-thieno<2,3-d><3,1>-oxazin-5-carboxylate

There total 7 articles about ethyl 4-oxo-2-phenyl-6-(triphenylphosphoranylideneamino)-4H-thieno<2,3-d><3,1>-oxazin-5-carboxylate 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: 82.0%

benzoyl chloride (98-88-4) + diethyl 2,5-bis[(triphenyl-λ5-phosphanylidene)amino]thiophene-3,4-dicarboxylate (147235-54-9) → ethyl 4-oxo-2-phenyl-6-(triphenylphosphoranylideneamino)-4H-thieno<2,3-d><3,1>-oxazin-5-carboxylate (147235-55-0)

Guidance literature:

With triethylamine; In acetonitrile; at 80 ℃; for 4h;

DOI:10.1016/S0040-4020(01)86261-X

Reference yield: 21.0%

benzoyl chloride (98-88-4) + diethyl 2,5-bis[(triphenyl-λ5-phosphanylidene)amino]thiophene-3,4-dicarboxylate (147235-54-9) → 2,7-diphenyl-4H,5H-thieno<2,3-d:5,4-d'>bis<3,1>-oxazin-4,5-dione (108561-19-9) + ethyl 4-oxo-2-phenyl-6-(triphenylphosphoranylideneamino)-4H-thieno<2,3-d><3,1>-oxazin-5-carboxylate (147235-55-0)

Guidance literature:

With triethylamine; In acetonitrile; for 6h; Heating;

DOI:10.1016/S0040-4020(01)86261-X

Reference yield:

2,5-diamino-thiophene-3,4-dicarboxylic acid diethyl ester (80691-81-2) → ethyl 4-oxo-2-phenyl-6-(triphenylphosphoranylideneamino)-4H-thieno<2,3-d><3,1>-oxazin-5-carboxylate (147235-55-0)

Guidance literature:

Multi-step reaction with 2 steps

1: 72 percent / Et₃N, hexachloroethane / acetonitrile / 4 h / Ambient temperature

2: 21 percent / Et₃N / acetonitrile / 6 h / Heating

With hexachloroethane; triethylamine; In acetonitrile;

DOI:10.1016/S0040-4020(01)86261-X

upstream raw materials:

benzoyl chloride

diethyl 2,5-bis[(triphenyl-λ⁵-phosphanylidene)amino]thiophene-3,4-dicarboxylate

diethyl 5-(1-chloro-1-phenylmethyleneamino)-2-(triphenylphosphoranylideneamino)thiophen-3,4-dicarboxylate

2,5-diamino-thiophene-3,4-dicarboxylic acid diethyl ester

Downstream raw materials:

3,4-dihydro-2-methoxy-3,7-diphenyl-5H-1,3-oxazino<5',4':4,5>-thieno<2,3-d>pyrimidin-4,5-dione

6-benzoylamino-3-butyl-3,4-dihydro-2-diphenylmethyl-4-oxothieno<2,3-d>pyrimidin-5-carbox-N-butylamide

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