Temazepam acetate

Base Information

• Chemical Name: Temazepam acetate
• CAS No.: 18818-64-9
• Molecular Formula: C18H15 Cl N2 O3
• Molecular Weight: 342.782
• European Community (EC) Number: 242-597-2
• UNII: 9F3H3E4BIM
• DSSTox Substance ID: DTXSID00940311
• Nikkaji Number: J222.315E
• Wikidata: Q27272466
• Metabolomics Workbench ID: 155031
• Mol file: 18818-64-9.mol

Synonyms:Temazepam acetate;18818-64-9;7-Chloro-1,3-dihydro-1-methyl-5-phenyl-2-oxo-2H-1,4-benzodiazepin-3-yl acetate;UNII-9F3H3E4BIM;9F3H3E4BIM;EINECS 242-597-2;7-chloro-1-methyl-2-oxo-5-phenyl-2,3-dihydro-1h-1,4-benzodiazepin-3-yl acetate;3-ACETOXYDIAZEPAM;(7-chloro-1-methyl-2-oxo-5-phenyl-3H-1,4-benzodiazepin-3-yl) acetate;SCHEMBL3796055;DTXSID00940311;TEMAZEPAM ACETATE, (RS)-;DB14671;TEMAZEPAM IMPURITY C [EP IMPURITY];W-109178;Q27272466;TEMAZEPAM IMPURITY, O-ACETYL TEMAZEPAM- [USP IMPURITY];2H-1,4-BENZODIAZEPIN-2-ONE, 3-(ACETYLOXY)-7-CHLORO-1,3-DIHYDRO-1-METHYL-5-PHENYL;3-acetoxy-7-chloro-1,3-dihydro-1-methyl-5-phenyl 2H-1,4-benzodiazepin-2-one;(3RS)-7-CHLORO-1-METHYL-2-OXO-5-PHENYL-2,3-DIHYDRO-1H-1,4-BENZODIAZEPIN-3-YL ACETATE

Chemical Property of Temazepam acetate

Chemical Property:

• Vapor Pressure: 1.15E-11mmHg at 25°C
• Boiling Point: 538.5°Cat760mmHg
• Flash Point: 279.5°C
• PSA: 58.97000
• Density: 1.31g/cm³
• LogP: 2.54360
• XLogP3: 2.8
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 3
• Exact Mass: 342.0771200
• Heavy Atom Count: 24
• Complexity: 530

Purity/Quality:

99.9% ^*data from raw suppliers

Temazepam Acetate ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: CC(=O)OC1C(=O)N(C2=C(C=C(C=C2)Cl)C(=N1)C3=CC=CC=C3)C

Technology Process of Temazepam acetate

There total 2 articles about Temazepam acetate 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: 85.7%

acetyl chloride (75-36-5) + temazepam (846-50-4) → 3-acetoxy-7-chloro-1-methyl-5-phenyl-1,3-dihydro-benzo[e][1,4]diazepin-2-one (18818-64-9)

Guidance literature:

With pyridine; In N,N-dimethyl-formamide; Ambient temperature;

DOI:10.1002/hlca.19980810558

Reference yield:

→ 3-acetoxy-7-chloro-1-methyl-5-phenyl-1,3-dihydro-benzo[e][1,4]diazepin-2-one (18818-64-9)

Guidance literature:

DOI:10.1016/S0040-4039(00)79814-5 DOI:10.1007/BF00771332

Reference yield:

3-acetoxy-7-chloro-1-methyl-5-phenyl-1,3-dihydro-benzo[e][1,4]diazepin-2-one (18818-64-9) → temazepam (846-50-4)

Guidance literature:

With hydrogenchloride; In 1,4-dioxane; water; at 25 - 30 ℃; for 17h; Product distribution / selectivity;

upstream raw materials:

acetyl chloride

temazepam

Downstream raw materials:

temazepam