(+/-)-2 3-DIBROMOBUTANE 98

Base Information

• Chemical Name: (+/-)-2 3-DIBROMOBUTANE 98
• CAS No.: 598-71-0
• Molecular Formula: C₄H₈Br₂
• Molecular Weight: 215.916

Synonyms:Butane,2,3-dibromo-, (R*,R*)-(?à)-; Butane, 2,3-dibromo-, (?à)- (8CI); (?à)-2,3-Dibromobutane;Butane, 2,3-dibromo-, (R*,R*)-; DL-2,3-Dibromobutane; NSC 245048;dl-2,3-Dibromobutane; threo-2,3-Dibromobutane

Chemical Property of (+/-)-2 3-DIBROMOBUTANE 98

Chemical Property:

• Melting Point: -25.98°C (estimate)
• Refractive Index: n20/D 1.515(lit.)
• Boiling Point: 161°Cat760mmHg
• Flash Point: 33°C
• PSA: 0.00000
• Density: 1.774g/cm³
• LogP: 2.55320

Purity/Quality:

99% ^*data from raw suppliers

Safty Information:

• Pictogram(s): Xi
• Hazard Codes: Xi
• Statements: 36
• Safety Statements: 26-37/39

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

Technology Process of (+/-)-2 3-DIBROMOBUTANE 98

There total 29 articles about (+/-)-2 3-DIBROMOBUTANE 98 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: 98.0%

erythro-2-bromo-3-chlorobutane (19246-45-8,19246-46-9,19773-36-5,19773-37-6,19773-43-4,49623-64-5,49623-65-6,49623-66-7) → DL-2,3-dibromobutane (598-71-0,5408-86-6,5780-13-2,40205-58-1,49623-63-4,58560-19-3)

Guidance literature:

With hydrogen bromide; ferric(III) bromide; In dichloromethane; at 25 ℃; for 1h;

DOI:10.1039/c39870001013

Reference yield: 90.0%

racemic 2,3-dichlorobutane (2211-67-8) → DL-2,3-dibromobutane (598-71-0,5408-86-6,5780-13-2,40205-58-1,49623-63-4,58560-19-3)

Guidance literature:

With hydrogen bromide; ferric(III) bromide; In dichloromethane; at 25 ℃; for 4h;

DOI:10.1039/c39870001013

Reference yield: 54.0%

racemic 2,3-dichlorobutane (2211-67-8) → DL-2,3-dibromobutane (598-71-0,5408-86-6,5780-13-2,40205-58-1,49623-63-4,58560-19-3) + 2-bromo-3-chloro-butane (19773-43-4) + s-butyl bromide (78-76-2,5787-31-5)

Guidance literature:

With hydrogen bromide; ferric(III) bromide; In dichloromethane; at 25 ℃; for 1h;

DOI:10.1039/c39870001013

upstream raw materials:

dimethylacetylene

(Z)-2-Butene

meso 2,3-butanediol diacetate

racemic 2,3-dichlorobutane

Downstream raw materials:

2,3-diacetoxybutane

(Z)-2-Butene

(Z)-2-Bromo-2-butene

trans-2-Butene

Refernces

Synthesis and antimicrobial activity of some new heterocyclic schiff bases derived from 2-Amino-3-formylchromone

10.1080/10426500802625594

The research aimed to synthesize new heterocyclic Schiff bases derived from 2-amino-3-formylchromone and investigate their antimicrobial activity. The study focused on combining chromone moieties with 1,2,4-triazole or 1,2,4-triazine derivatives through an azomethine linkage to create novel nitrogen heterocyclic systems. Key chemicals used included 2-amino-3-formylchromone as the starting material, various hydrazine derivatives (such as benzoylhydrazine, cyanoacetohydrazide, and thiocarbohydrazide) for condensation reactions, and electrophilic reagents like benzoyl chloride, acetic anhydride, and carbon disulfide for further heterocyclization. The newly synthesized compounds were characterized using IR, 1H NMR, and mass spectrometry. The antimicrobial activity of these compounds was tested against a range of bacteria and fungi, revealing that compounds 8 and 20 showed moderate activity against bacteria and high activity against fungi, while compounds 9, 13, and 15 exhibited high antifungal activity. The study concluded that the synthesized compounds have potential as antimicrobial agents, particularly those incorporating dithioxo-1,2,4-triazole and antipyrine moieties, and suggested that further modifications could enhance their biological efficacy.

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