2-Triphenylphosphoranylidenamino-4H-benzopyrano<3,2-e><1,2,4>triazolo<1,5-c>pyrimidin-11-on

Base Information

• Chemical Name: 2-Triphenylphosphoranylidenamino-4H-benzopyrano<3,2-e><1,2,4>triazolo<1,5-c>pyrimidin-11-on
• CAS No.: 153790-57-9
• Molecular Formula: C₃₆H₃₀N₅O₂PS
• Molecular Weight: 627.706

Synonyms:2-Triphenylphosphoranylidenamino-4H-benzopyrano<3,2-e><1,2,4>triazolo<1,5-c>pyrimidin-11-on

Chemical Property of 2-Triphenylphosphoranylidenamino-4H-benzopyrano<3,2-e><1,2,4>triazolo<1,5-c>pyrimidin-11-on

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Technology Process of 2-Triphenylphosphoranylidenamino-4H-benzopyrano<3,2-e><1,2,4>triazolo<1,5-c>pyrimidin-11-on

There total 3 articles about 2-Triphenylphosphoranylidenamino-4H-benzopyrano<3,2-e><1,2,4>triazolo<1,5-c>pyrimidin-11-on 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: 67.0%

triphenylphosphine (603-35-0) + <3,4,6,7,8,9-Hexahydro-4-imino-8,8-dimethyl-6-oxo-5-(2-thienyl)-4H-benzopyrano-<2,3-d>pyrimidin-3-yl>-harnstoff (153790-56-8) → 2-Triphenylphosphoranylidenamino-4H-benzopyrano<3,2-e><1,2,4>triazolo<1,5-c>pyrimidin-11-on (153790-57-9)

Guidance literature:

With hexachloroethane; triethylamine; In acetonitrile; for 8h; Heating;

DOI:10.1055/s-1993-26014

Reference yield:

2-amino-7,7-dimethyl-5-oxo-4-(thiophen-2-yl)-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile (153790-54-6) → 2-Triphenylphosphoranylidenamino-4H-benzopyrano<3,2-e><1,2,4>triazolo<1,5-c>pyrimidin-11-on (153790-57-9)

Guidance literature:

Multi-step reaction with 3 steps

1: 82 percent / acetic anhydride / 5 h / Heating

2: 79 percent / Et₃N / ethanol / 12 h / Ambient temperature

3: 67 percent / (CCl₃)2, NEt₃ / acetonitrile / 8 h / Heating

With hexachloroethane; triethylamine; In ethanol; acetic anhydride; acetonitrile;

DOI:10.1055/s-1993-26014

Reference yield:

2-Ethoxymethylenimino-5,6,7,8-tetrahydro-7,7-dimethyl-5-oxo-4-(2-thienyl)-4H-benzopyran-3-carbonitril → 2-Triphenylphosphoranylidenamino-4H-benzopyrano<3,2-e><1,2,4>triazolo<1,5-c>pyrimidin-11-on (153790-57-9)

Guidance literature:

Multi-step reaction with 2 steps

1: 79 percent / Et₃N / ethanol / 12 h / Ambient temperature

2: 67 percent / (CCl₃)2, NEt₃ / acetonitrile / 8 h / Heating

With hexachloroethane; triethylamine; In ethanol; acetonitrile;

DOI:10.1055/s-1993-26014

upstream raw materials:

triphenylphosphine

<3,4,6,7,8,9-Hexahydro-4-imino-8,8-dimethyl-6-oxo-5-(2-thienyl)-4H-benzopyrano-<2,3-d>pyrimidin-3-yl>-harnstoff

2-amino-7,7-dimethyl-5-oxo-4-(thiophen-2-yl)-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile

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