2-bromo-4-(2-chlorophenyl)-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine

Base Information

• Chemical Name: 2-bromo-4-(2-chlorophenyl)-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine
• CAS No.: 57801-97-5
• Molecular Formula: C14H8BrClN4S
• Molecular Weight: 379.6621
• Mol file: 57801-97-5.mol

Synonyms:

Chemical Property of 2-bromo-4-(2-chlorophenyl)-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine

Chemical Property:

• Vapor Pressure: 6.58E-12mmHg at 25°C
• Melting Point: 216-218 °C(Solv: ethanol (64-17-5))
• Boiling Point: 544.3°Cat760mmHg
• PKA: 1.63±0.40(Predicted)
• Flash Point: 283°C
• PSA: 71.31000
• Density: 1.84g/cm³
• LogP: 3.53130

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 2-bromo-4-(2-chlorophenyl)-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine

There total 9 articles about 2-bromo-4-(2-chlorophenyl)-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine 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: 99.0%

7-Bromo-5-(2-chlorophenyl)-2-hydrazino-1,3-dihydrothieno<2,3-e>-1,4-diazepin-2-one (57801-83-9) + orthoformic acid triethyl ester (122-51-0) → 2-Bromo-4-(2-chlorophenyl)-6H-thieno<3,2-f>-1,2,4-triazolo<4,3-a>-1,4-diazepine (57801-97-5)

Guidance literature:

With sulfuric acid; In ethanol; for 2h; Heating;

DOI:10.1135/cccc19840621

Reference yield:

2-bromo-4-(2-chloro-phenyl)-5,6-dihydro-4H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine (62551-47-7) → 2-Bromo-4-(2-chlorophenyl)-6H-thieno<3,2-f>-1,2,4-triazolo<4,3-a>-1,4-diazepine (57801-97-5)

Guidance literature:

With potassium permanganate; In acetone; Ambient temperature;

Reference yield:

2-Amino-3-(o-chlorobenzoyl)-thiophene (40017-58-1) → 2-Bromo-4-(2-chlorophenyl)-6H-thieno<3,2-f>-1,2,4-triazolo<4,3-a>-1,4-diazepine (57801-97-5)

Guidance literature:

Multi-step reaction with 7 steps

1: 43 percent / CHCl₃ / 1) after mixing slowly heated and refluxed 2 h, 2) standing overnight

2: 58 percent / hydrazine hydrate / methanol; CHCl₃; H₂O / 1) 45 deg C, 10 min, 2) 60 deg C, 1,5 h, 3) standing overnight

3: 13 percent / acetic acid / benzene; pyridine / 5.5 h / Heating

4: 86 percent / bromine, pyridine / CHCl₃ / 3.75 h / 20 - 24 °C

5: 85 percent / P₂S₅ / pyridine / 2.5 h / 70 - 75 °C

6: 73 percent / hydrazine hydrate / methanol / 3.5 h / Ambient temperature

7: 99 percent / sulphuric acid / ethanol / 2 h / Heating

With pyridine; tetraphosphorus decasulfide; sulfuric acid; bromine; hydrazine hydrate; acetic acid; In pyridine; methanol; ethanol; chloroform; water; benzene;

DOI:10.1135/cccc19840621

upstream raw materials:

2-bromo-4-(2-chloro-phenyl)-5,6-dihydro-4H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine

7-Bromo-5-(2-chlorophenyl)-2-hydrazino-1,3-dihydrothieno<2,3-e>-1,4-diazepin-2-one

orthoformic acid triethyl ester

2-Amino-3-(o-chlorobenzoyl)-thiophene

Downstream raw materials:

2-bromo-4-(2-chloro-phenyl)-9-methoxy-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine

2-bromo-4-(2-chloro-phenyl)-6,8-dihydro-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepin-9-one

2,9-Dibromo-4-(2-chlorophenyl)-6H-thieno<3,2-f>-1,2,4-triazolo<4,3-a>-1,4-diazepine

2-bromo-9-chloro-4-(2-chloro-phenyl)-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine

Refernces