3,4-Dibromo-2-nitrothiophene

Base Information

• Chemical Name: 3,4-Dibromo-2-nitrothiophene
• CAS No.: 35633-91-1
• Molecular Formula: C4HBr2NO2S
• Molecular Weight: 286.92900
• Hs Code.: 2934999090
• DSSTox Substance ID: DTXSID20360916
• Wikidata: Q82142942
• Mol file: 35633-91-1.mol

Synonyms:3,4-dibromo-2-nitrothiophene;35633-91-1;3,4-dibromo-2 nitrothiophene;SCHEMBL3710683;DTXSID20360916;SFQCSMOCYWODDI-UHFFFAOYSA-N;MFCD04971348;AKOS005068339;AC-27189;CS-0308390;EN300-118383;H11131;AI-942/42302023

Chemical Property of 3,4-Dibromo-2-nitrothiophene

Chemical Property:

• PSA: 74.06000
• LogP: 3.70450
• Storage Temp.: 2-8°C
• XLogP3: 3.1
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 286.80743
• Heavy Atom Count: 10
• Complexity: 151

Purity/Quality:

98%,99%, ^*data from raw suppliers

3,4-Dibromo-2-nitrothiophene 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Canonical SMILES: C1=C(C(=C(S1)[N+](=O)[O-])Br)Br

Technology Process of 3,4-Dibromo-2-nitrothiophene

There total 2 articles about 3,4-Dibromo-2-nitrothiophene 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: 95.0%

3,4-dibromothiophene (3141-26-2) → dibromo-3,4 nitro-2 thiophene (35633-91-1)

Guidance literature:

With sulfuric acid; nitric acid; In chloroform; at 50 ℃; for 24h;

DOI:10.1080/17415993.2020.1753190

Reference yield:

→ dibromo-3,4 nitro-2 thiophene (35633-91-1) + 9-H-1-bromo-7,8-dimethyl-3-thieno[1,4]benzothiazine

Guidance literature:

Reference yield: 65.0%

dibromo-3,4 nitro-2 thiophene (35633-91-1) + sodium salicylate (3116-83-4) → 4-bromo-3-(2'-formylphenoxy)-2-nitrothiophene (93102-40-0)

Guidance literature:

In N,N-dimethyl-formamide; for 3h; Heating;

DOI:10.1002/jhet.5570210348

upstream raw materials:

3,4-dibromothiophene

Downstream raw materials:

4-bromo-3-(2'-formylphenoxy)-2-nitrothiophene

(4-Bromo-2-nitro-thiophen-3-yl)-phenyl-amine

bromo-4 nitro-2 thiophene

Refernces

• 1、 -. "Heterocyclic-ring condensed benzothiazine compound". . . Retrieved 2008/06/13.