5-CHLORO-2-THIOPHENECARBOXYLIC ACID HYDRAZIDE

Base Information

• Chemical Name: 5-CHLORO-2-THIOPHENECARBOXYLIC ACID HYDRAZIDE
• CAS No.: 351983-31-8
• Molecular Formula: C5H5ClN2OS
• Molecular Weight: 176.626
• Hs Code.: 29280000
• European Community (EC) Number: 622-236-9
• DSSTox Substance ID: DTXSID60374072
• Nikkaji Number: J2.230.370H
• Wikidata: Q82162550
• Mol file: 351983-31-8.mol

Synonyms:5-chlorothiophene-2-carbohydrazide;2-thiophenecarboxylic acid, 5-chloro-, hydrazide;5-chlorothiophene-2-carbohydrazide;

Chemical Property of 5-CHLORO-2-THIOPHENECARBOXYLIC ACID HYDRAZIDE

Chemical Property:

• Melting Point: 148-149°C
• Refractive Index: 1.628
• PSA: 83.36000
• Density: 1.491 g/cm³
• LogP: 2.09620
• XLogP3: 1.4
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 1
• Exact Mass: 175.9811117
• Heavy Atom Count: 10
• Complexity: 144

Purity/Quality:

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

5-Chlorothiophene-2-carbohydrazide ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xi; Xn
• Hazard Codes: Xi,Xn
• Statements: 20/21/22-36/37/38-22
• Safety Statements: 22-36/37/39-26

MSDS Files:

SDS file from LookChem

Useful:

• Canonical SMILES: C1=C(SC(=C1)Cl)C(=O)NN

Technology Process of 5-CHLORO-2-THIOPHENECARBOXYLIC ACID HYDRAZIDE

There total 4 articles about 5-CHLORO-2-THIOPHENECARBOXYLIC ACID HYDRAZIDE 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:

ethyl 5‐chlorothiophene‐2‐carboxylate (5751-82-6) → 5-chloro-2-thiophenecarboxylic acid hydrazide (351983-31-8)

Guidance literature:

With methanol; hydrazine hydrate;

Reference yield:

5-Chlorothiophene-2-carboxylic acid (24065-33-6) → 5-chloro-2-thiophenecarboxylic acid hydrazide (351983-31-8)

Guidance literature:

Multi-step reaction with 2 steps

1: Reflux

2: hydrazine

With hydrazine; 1: |Fischer–Speier Esterification;

DOI:10.1007/s00044-019-02442-1

Reference yield:

5-chlorothiophene-2-carbonyl chloride (42518-98-9) → 5-chloro-2-thiophenecarboxylic acid hydrazide (351983-31-8)

Guidance literature:

Multi-step reaction with 2 steps

2: methanol; hydrazine hydrate

With methanol; hydrazine hydrate;

upstream raw materials:

ethyl 5‐chlorothiophene‐2‐carboxylate

5-chlorothiophene-2-carbonyl chloride

methyl 5-chloro-2-thiophenecarboxylate

5-Chlorothiophene-2-carboxylic acid

Downstream raw materials:

5-chloro-thiophene-2-carboxylic acid-(2-chloro-benzylidenehydrazide)

5-chloro-thiophene-2-carboxylic acid-(4-methoxy-benzylidenehydrazide)

5-chloro-thiophene-2-carboxylic acid-(5-bromo-2-hydroxy-benzylidenehydrazide)

N-(2-fluorobenzyl)-2-(5-chlorthiophen-2-carbonyl)-hydrazinecarboxamide

Refernces

• 1、 Martínez, Roberto,Espitia-Pinzón, Clara I.,Silva Miranda, Mayra,Chávez-Santos, Rosa María,Pretelin-Castillo, Gustavo,Ramos-Orea, Aldahir,Hernández-Báez, ángela M.,Cotlame-Pérez, Sandra,Pedraza-Rodríguez, Rogelio. "Synthesis and antituberculosis activity of new acylthiosemicarbazides designed by structural modification". . p. 350 - 355. Retrieved 2019/12/03.