(+/-)-2 3-DIBROMOBUTANE 98

Base Information

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

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%min ^*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

• 1、 Yoon, K. B.,Kochi, J. K.. "Efficient Conversion of Alkyl Chlorides into Bromides". . p. 1013 - 1014. Retrieved 2007/10/02.
• 2、 Atto, Saeed Y.,Tedder, John M.,Walton, John C.. "Free Radical Substitution. Part 38. The Effect of Solvent on the Atomic Chlorination and Bromination of 2-Substituted Butanes and the Importance of Steric Effects". . p. 629 - 634. Retrieved 2007/10/02.