dibutyl (4-methylbenzene-1,3-diyl)biscarbamate

Base Information

• Chemical Name: dibutyl (4-methylbenzene-1,3-diyl)biscarbamate
• CAS No.: 7469-49-0
• Molecular Formula: C17H26N2O4
• Molecular Weight: 322.404
• Mol file: 7469-49-0.mol

Synonyms:

Chemical Property of dibutyl (4-methylbenzene-1,3-diyl)biscarbamate

Chemical Property:

• Vapor Pressure: 1.11E-05mmHg at 25°C
• Boiling Point: 370.4°Cat760mmHg
• Flash Point: 177.8°C
• Density: 1.136g/cm³

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

Technology Process of dibutyl (4-methylbenzene-1,3-diyl)biscarbamate

There total 12 articles about dibutyl (4-methylbenzene-1,3-diyl)biscarbamate 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: 96.7%

butyl carbamate (592-35-8) + 4-methylbenzene-1,3-diamine (95-80-7,71111-07-4) + butan-1-ol (71-36-3) → 1-methyl-2,4-bis-(butoxycarbonylamino)-benzene (7469-49-0)

Guidance literature:

With zinc(II) tosylate; at 200 ℃; for 10h; Inert atmosphere;

Reference yield: 96.0%

4-methylbenzene-1,3-diamine (95-80-7,71111-07-4) + urea (57-13-6) + butan-1-ol (71-36-3) → 1-methyl-2,4-bis-(butoxycarbonylamino)-benzene (7469-49-0)

Guidance literature:

zinc(II) tosylate; at 200 ℃; for 8h; Product distribution / selectivity; autoclave; Inert atmosphere;

Reference yield: 89.0%

2,4-Toluene diisocyanate (584-84-9,6144-18-9,26006-20-2) + butan-1-ol (71-36-3) → 1-methyl-2,4-bis-(butoxycarbonylamino)-benzene (7469-49-0)

Guidance literature:

With diallyltin(IV)di(2-ethyl hexanoate); In dichloromethane; for 0.0833333h; Heating;

DOI:10.1080/00397919408011192

upstream raw materials:

2,4-Toluene diisocyanate

butan-1-ol

(3-isocyanato-4-methyl-phenyl)-carbamic acid butyl ester

4-methylbenzene-1,3-diamine

Downstream raw materials:

2,4-Toluene diisocyanate

Refernces

• 1、 -. "MULTISTEP PROCESS FOR THE PREPARATION OF HEXAMETHYLENE DIISOCYANATE, PENTAMETHYLENE DIISOCYANATE OR TOLUENE DIISOCYANATE". Page/Page column 12. . Retrieved 2019/04/26.
• 2、 -. "Method of manufacturing dicarbamate compsn. toluene, and, toluene diisocyanate". Paragraph 0130-0131. . Retrieved 2017/02/09.