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Postion:Product Catalog >Organic Chemistry>Hydrocarbons and derivatives>Hydrocarbon halides>1-BROMO-2-BUTYNE
1-BROMO-2-BUTYNE
  • 1-BROMO-2-BUTYNE
  • 1-BROMO-2-BUTYNE
  • 1-BROMO-2-BUTYNE
  • 1-BROMO-2-BUTYNE
  • 1-BROMO-2-BUTYNE

1-BROMO-2-BUTYNE NEW

Price Get Latest Price
Package 25KG
Min. Order: 1KG
Supply Ability: 50000KG/month
Update Time: 2023-08-18

Product Details

Product Name: 1-BROMO-2-BUTYNE CAS No.: 3355-28-0
EC-No.: 608-891-3 Min. Order: 1KG
Purity: 99% Supply Ability: 50000KG/month
Release date: 2023/08/18

CAS:3355-28-0
MF:C4H5Br
MW:132.99
EINECS:608-891-3
Product Categories:Intermediates;Acetylenes;Functionalized Acetylenes;Alkynyl;Halogenated Hydrocarbons;Organic Building Blocks
Mol File:3355-28-0.mol
Article illustration

1-BROMO-2-BUTYNE Chemical Properties
Boiling point 40-41 °C/20 mmHg (lit.)
density 1.519 g/mL at 25 °C (lit.)
refractive index n20/D 1.508(lit.)
Fp 97 °F
storage temp. Inert atmosphere,Room Temperature
solubility Miscible with acetonitrile.
form Liquid
Specific Gravity1.519
color Clear pale yellow-greenish
BRN 605306
InChIKeyLNNXOEHOXSYWLD-UHFFFAOYSA-N
CAS DataBase Reference3355-28-0(CAS DataBase Reference)

1-BROMO-2-BUTYNE Usage And Synthesis
Chemical PropertiesClear pale yellow-greenish liquid
Uses1-Bromo-2-butyne is used in the preparation of six to eight annulated ring compounds in reaction with indoles and pseudopterane (+/-)-Kallolide B, which is a marine natural product. Further, it acts as a precursor in the preparation of axially chiral teranyl compounds, alkylation of L-tryptophan methyl ester, 4-butynyloxybenzene sulfonyl chloride and mono-propargylated diene derivative. In addition to this, it is also used in the synthesis of isopropylbut-2-ynylamine, allenylcyclobutanol derivatives, allyl-[4-(but-2-ynyloxy)phenyl]sulfane, allenylindium and axially chiral teranyl compounds.
Preparation1-bromo-2-butyne is obtained by reacting 2-butyn-1-ol and organic solvent, pyridine.First react bromoethane with metal magnesium in THF to prepare Grignard reagent, then add paraformaldehyde to Grignard reagent for Grignard reaction, separate and recover after Grignard reaction 2-butyn-1-ol, then mix 2-butyn-1-ol with organic solvent and pyridine, add phosphorus tribromide dropwise for bromination reaction, separate and recover the product after bromination reaction.
General Description1-Bromo-2-butyne is a propargyl bromide derivative. It is one of the constitutional isomer of bromo butyne. Its Br-loss threshold photoionization breakdown diagram has been analyzed to derive dissociative photoionization thresholds to C4H5+ production. It participates in the preparation of linagliptin.

Packing &shipping&Payment

Packing:25kg/drum
Shipping:by sea or by air
Payment:T/T,western union,moneygram
Packaging Details drum
Port:Tianjin
Lead Time :
Quantity(Kilograms)1 - 10000>10000
Est. Time(days)5To be negotiated

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Article illustrationCompany information
Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in 4'-Methylacetophenone,Levamisole hydrochloride ,N-Methylformamide and other chemical reagents research and development production enterprises. Our business covers more than 30 countries, most of the big customers come from Europe, America and other countries in the world, we can guarantee the quality and price. In recent decades, with the efforts of all employees, we have established many cooperative companies in shandong, henan, guangdong and other places. Our corporate purpose is based on the market, enhance the strength, take the road of scientific and environmental sustainable development, relying on the country. Technology r & d center, increase the investment in r & d, based on the domestic market, expand the international market, manufacturing quality products, sincere service to the society, into a modern, ecological, scientific and technological enterprise world.

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