15787-79-8

Basic information

• Product Name: 3-Buten-2-one, 1,4-dichloro-
• Synonyms: 1,4-dichlorobut-3-en-2-one;(Z)-1,4-Dichloro-but-3-en-2-one;1,4-Dichlor-but-3-en-2-on;β-Chlorvinyl-chlormethylketon;Chlormethyl-(2-chlor-vinyl)-keton;1,4-dichloro-3-buten-2-one;1,4-dichloro-but-3-en-2-one
• CAS NO: 15787-79-8
• Molecular Formula: C4H4Cl2O
• Molecular Weight: 138.981
• Mol File: 15787-79-8.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 82 - 83 °C (24 mmHg)
• CAS DataBase Reference: 3-Buten-2-one, 1,4-dichloro-(CAS DataBase Reference)
• NIST Chemistry Reference: 3-Buten-2-one, 1,4-dichloro-(15787-79-8)
• EPA Substance Registry System: 3-Buten-2-one, 1,4-dichloro-(15787-79-8)

Safety Data

• Hazardous Substances Data: 15787-79-8(Hazardous Substances Data)

Upstream product

• 7446-70-0 aluminium trichloride 
• 79-04-9 chloroacetyl chloride 
• 74-86-2 acetylene 

Downstream Products

• 57684-71-6 3-isoxazolylmethyl chloride 
• 88981-42-4 (3E)-1-chloro-4-phenyl-3-buten-2-one 
• 88137-73-9 2-Chloro-1-(1-p-tolyl-1H-[1,2,3]triazol-4-yl)-ethanone 
• 88137-74-0 2-Chloro-1-[1-(4-methoxy-phenyl)-1H-[1,2,3]triazol-4-yl]-ethanone 
• 79890-97-4 1,4-bistriphenylphosphonio-2-oxobut-3-ene dichloride 
• 78114-46-2 <2-(chloroacetyl)vinyl>triphenylphosphonium chloride 
• 84547-64-8 3-(chloromethyl)-1-methyl-1H-pyrazole 
• 90251-28-8 (E)-1-Chloro-4-(4-iodo-phenylamino)-but-3-en-2-one 
• 90251-25-5 3-Chloromethyl-1-(2,4-dinitro-phenyl)-1H-pyrazole 
• 90251-24-4 1-p-Nitrophenyl-3-chloromethylpyrazole 
• 90251-29-9 (E)-1-Chloro-4-(4-nitro-phenylamino)-but-3-en-2-one 
• 90251-30-2 (E)-4-(4-Acetyl-phenylamino)-1-chloro-but-3-en-2-one 
• 90251-27-7 (E)-1-Chloro-4-p-tolylamino-but-3-en-2-one 
• 88137-70-6 Chloromethyl 3-pyrazolyl ketone 

Relevant articles and documents

Alkylation of 5-Substituted Tetrazoles with Various Alcohols in 1,2-Dichloroethane in the Presence of BF3·Et2O

Abstract: The alkylation of 1H-tetrazole, 5-methyl-1H-tetrazole, and 5-phenyl-1H-tetrazole with primary, secondary, and tertiary alcohols, including benzylic and allylic ones, have been studied in 1,2-dichloroethane in the presence of boron trifluoride–diethyl ether complex. Neither primary nor secondary saturated alcohols alkylated tetrazoles in the given system. Tertiary alcohols such tert-butyl alcohol and adamantan-1-ol reacted with unsubstituted and 5-substituted tetrazoles to give 70–85% of the corresponding 2-alkyl-5-R-tetrazoles with high regioselectivity. The alkylation of 1H-tetrazole with benzyl alcohol afforded 55% of 2-benzyl-2H-tetrazole as the only product. The alkylation of 1H-tetrazole with various allylic alcohols led to the formation of mixtures of 2-alkyl-2H-tetrazoles with isomeric alkyl substituents.

A 3 - isoxazole acetate acid animal pen fat chemical synthesis method

The invention relates to a chemical synthesis method of 3-isoxazolyl benzyl acetate. According to the invention, chloroacetyl chloride and acetylene are taken as raw materials, the yield of the reaction is increased by addition, condensation, substitution, hydrolysis and esterification steps and an efficient synthesis method is provided for the synthesis of the compound. The synthesis method mainly comprises steps of adding acetylene, chloroacetyl chloride, catalyst aluminum chloride and a solvent tetrahydrofuran into the reaction vessel, reacting, and separating to obtain 1,4-dichloro-3-butenone after the reaction is completed; adding 1,4-dichloro-3-butenone and ammonium sulfate into a methanol or ethanol solvent, controlling the reaction temperature, and reacting to obtain 3-chloromethyl isoxazole; preparing 3-isoxazole acetonitrile; adding 3-isoxazole oxazol-acetonitrile into hydrochloric acid for hydrolyzing to obtain 3-isoxazole acetic acid; adding 3-isoxazole acetic acid and benzyl alcohol into a dichloromethane or trichloromethane solvent, and adding thionyl chloride and a catalyst N, N-dimethyl-formamide for reacting to obtain 3-isoxazolyl benzyl acetate.