4-phenyl-2,5-dihydro-1H-2,3-benzodiazepin-1-one

Base Information

• Chemical Name: 4-phenyl-2,5-dihydro-1H-2,3-benzodiazepin-1-one
• CAS No.: 35968-90-2
• Molecular Formula: C15H12N2O
• Molecular Weight: 236.26900
• Mol file: 35968-90-2.mol

Synonyms:4-Phenyl-2,5-dihydro-benzo[d][1,2]diazepin-1-one;4-Phenyl-2,5-dihydro-benzo[d][1,2]diazepin-1-on;1-Oxo-4-phenyl-2,5-dihydro(1H)-2,3-benzodiazepin;

Chemical Property of 4-phenyl-2,5-dihydro-1H-2,3-benzodiazepin-1-one

Chemical Property:

• Melting Point: 197 - 198 °C (ethanol)
• PSA: 41.46000
• LogP: 2.14120

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 4-phenyl-2,5-dihydro-1H-2,3-benzodiazepin-1-one

There total 7 articles about 4-phenyl-2,5-dihydro-1H-2,3-benzodiazepin-1-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: 86.0%

3-phenyl-isocoumarin (4809-08-9) → 1,2-dihydro-4-phenyl-5H-benzo2,3-diazepin-1-one (35968-90-2)

Guidance literature:

With hydrazine; at 90 ℃; for 6h;

DOI:10.1002/adsc.201900764

Reference yield:

benzoyl chloride (98-88-4) → 1,2-dihydro-4-phenyl-5H-benzo2,3-diazepin-1-one (35968-90-2)

Guidance literature:

Multi-step reaction with 3 steps

1.1: potassium tert-butylate / tetrahydrofuran / 2 h / Reflux

1.2: 3 h / 0 - 20 °C

2.1: [RhCl₂(p-cymene)]2; silver hexafluoroantimonate; acetic acid / 2,2,2-trifluoroethanol / 12 h / 100 °C / Inert atmosphere

3.1: hydrazine / 6 h / 90 °C

With silver hexafluoroantimonate; [RhCl₂(p-cymene)]2; potassium tert-butylate; acetic acid; hydrazine; In tetrahydrofuran; 2,2,2-trifluoroethanol;

DOI:10.1002/adsc.201900764

Reference yield:

2-(dimethyl(oxo)-λ6-sulfaneylidene)-1-phenylethan-1-one (20718-17-6) → 1,2-dihydro-4-phenyl-5H-benzo2,3-diazepin-1-one (35968-90-2)

Guidance literature:

Multi-step reaction with 2 steps

1: [RhCl₂(p-cymene)]2; silver hexafluoroantimonate; acetic acid / 2,2,2-trifluoroethanol / 12 h / 100 °C / Inert atmosphere

2: hydrazine / 6 h / 90 °C

With silver hexafluoroantimonate; [RhCl₂(p-cymene)]2; acetic acid; hydrazine; In 2,2,2-trifluoroethanol;

DOI:10.1002/adsc.201900764

upstream raw materials:

3-phenyl-isocoumarin

tolan-2-carboxylic acid hydrazide

2-(2-oxo-2-phenylethyl)benzoic acid

ethanol

Downstream raw materials:

3-phenylisoquinoline-1-ol

2-Amino-3-phenyl-isocarbostyril

2-morpholin-4-ylmethyl-4-phenyl-2,5-dihydro-benzo[d][1,2]diazepin-1-one