2026-12-2

Upstream product

• 28383-65-5 ethyl 2-diazo-3-oxo-3-phenylpropanoate 
• 1603-79-8 phenylglyoxylic acid ethyl ester 
• 56-23-5 tetrachloromethane 

Downstream Products

• 53421-62-8 1,1-Dichloro-2-phenyl-non-1-en-4-yn-3-one 
• 40920-45-4 3,3-dichloro-2-phenylacryloyl chloride 
• 40920-46-5 3-chloro-2-phenyl-1-indenone 
• 33128-45-9 1,1-Dichloro-2-phenyl-pent-1-en-3-ol 
• 40920-44-3 1,1-Dichloro-2-phenyl-pent-1-en-3-one 
• 53366-83-9 4,4-Dichloro-3-phenyl-but-3-en-2-ol 
• 40920-43-2 4,4-Dichloro-3-phenyl-but-3-en-2-one 
• 27061-54-7 3,3-Dichlor-2-phenyl-acrylsaeure 

Relevant academic research and scientific papers

Preparation method of α,β- or β,β-dihaloenones from diazodicarbonyls

The present invention relates to a method for preparing andalpha;,andbeta;- or andbeta;,andbeta;-dihaloenone compounds from diazodicarbonyl compounds. According to the present invention, a diazo compound reacts with an oxalyl halide in the presence of a ruthenium catalyst so andalpha;,andbeta;- and andbeta;,andbeta;-dihaloenones can be synthesized through one-step reaction in an easy, simple and environmental manner. The synthesized andalpha;,andbeta;- and andbeta;,andbeta;-dihaloenones can be widely used for synthesis of intermediates of various drugs, natural materials, agricultural pesticides, dyes, etc. due to various biological activities.COPYRIGHT KIPO 2017

Ruthenium(II)-catalyzed protocol for preparation of diverse α,β- and β,β-Dihaloenones from diazodicarbonyls

Efficient one-step syntheses of α,β- and β,β-dihaloenones were achieved by ruthenium(II)- catalyzed reactions between cyclic or acyclic diazodicarbonyl compounds and oxalyl chloride or oxalyl bromide in moderate to good yields. This methodology offers sev