6-BROMO-5-METHYL (1H)INDAZOLE

Base Information

• Chemical Name: 6-BROMO-5-METHYL (1H)INDAZOLE
• CAS No.: 1000343-69-0
• Molecular Formula: C₈H₇BrN₂
• Molecular Weight: 211.061
• Hs Code.: 2933990090
• Mol file: 1000343-69-0.mol

Synonyms:6-Bromo-5-methyl-1H-indazole;

Chemical Property of 6-BROMO-5-METHYL (1H)INDAZOLE

Chemical Property:

• Boiling Point: 344.623 °C at 760 mmHg
• PKA: 13.01±0.40(Predicted)
• Flash Point: 162.222 °C
• PSA: 28.68000
• Density: 1.655 g/cm³
• LogP: 2.63380
• Storage Temp.: 2-8°C(protect from light)

Purity/Quality:

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

6-Bromo-5-methyl-1H-indazole ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Xn
• Hazard Codes: Xn
• Statements: 22

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 6-BROMO-5-METHYL (1H)INDAZOLE

There total 3 articles about 6-BROMO-5-METHYL (1H)INDAZOLE 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: 32.0%

5-bromo-2,4-dimethylaniline (69383-60-4) → 6-bromo-5-methyl-1H-indazole (1000343-69-0,1337530-20-7)

Guidance literature:

5-bromo-2,4-dimethylaniline; With 18-crown-6 ether; potassium acetate; acetic anhydride; isopentyl nitrite; In chloroform; for 36h; Cooling with ice; Reflux;

With sodium hydroxide; In tetrahydrofuran; at 20 ℃; for 1h;

Reference yield:

C8H8BrN2(1+)*BF4(1-) → 6-bromo-5-methyl-1H-indazole (1000343-69-0,1337530-20-7)

Guidance literature:

With 18-crown-6 ether; potassium acetate; In chloroform; at 20 ℃; for 3h; Inert atmosphere;

DOI:10.1021/acs.jmedchem.9b00329

Reference yield:

1-bromo-2,4-dimethyl-5-nitro-benzene (69383-59-1) → 6-bromo-5-methyl-1H-indazole (1000343-69-0,1337530-20-7)

Guidance literature:

Multi-step reaction with 2 steps

1.1: iron; hydrogenchloride / tetrahydrofuran / 4 h / 20 °C

2.1: acetic anhydride; potassium acetate; 18-crown-6 ether; isopentyl nitrite / chloroform / 36 h / Reflux

2.2: 1 h / 20 °C

With hydrogenchloride; 18-crown-6 ether; potassium acetate; acetic anhydride; iron; isopentyl nitrite; In tetrahydrofuran; chloroform;

upstream raw materials:

5-bromo-2,4-dimethylaniline

1-bromo-2,4-dimethyl-5-nitro-benzene

Refernces

• 1、 -. "COMPOUNDS FOR INHIBITING LRRK2 KINASE ACTIVITY". Page/Page column 50; 60; 61. . Retrieved 2018/09/08.
• 2、 -. "COMPOUNDS". Page/Page column 42-43. . Retrieved 2018/08/20.