58472-45-0

Upstream product

• 403-43-0 4-fluorobenzoyl chloride 
• 557-93-7 2-bromoprop-1-ene 
• 116332-54-8 4-fluoro-N-methoxy-N-methylbenzamide 
• 124-38-9 carbon dioxide 
• 456-03-1 1-(4-fluorophenyl)propan-1-one 
• 127-19-5 N,N-dimethyl acetamide 

Downstream Products

• 92771-58-9 5-(4-Fluoro-phenyl)-2,6-dimethyl-6,7-dihydro-[1,3,4]oxadiazepine 
• 41201-58-5 5-Fluoro-2-Methyl-Indan-1-One 

Relevant academic research and scientific papers

Br?nsted Base-Catalyzed Transformation of α,β-Epoxyketones Utilizing [1,2]-Phospha-Brook Rearrangement for the Synthesis of Allylic Alcohols Having a Tetrasubstituted Alkene Moiety

A stereoselective transformation of α,β-epoxyketones into alkenylphosphates having a hydroxymethyl group on the β-carbon was established by utilizing the [1,2]-phospha-Brook rearrangement under Br?nsted base catalysis. The reaction involves the catalytic generation of an α-oxygenated carbanion located at the α-position of an epoxide moiety through the [1,2]-phospha-Brook rearrangement and the following epoxide opening. Further transformation of the alkenylphosphates by the palladium-catalyzed cross-coupling reaction with Grignard reagents provided allylic alcohols having a stereodefined all-carbon tetrasubstituted alkene moiety.

Transition-Metal-Free Reductive Deoxygenative Olefination with CO2

A new transition-metal-free reductive deoxygenative olefination of phosphorus ylides with CO2, an abundant and sustainable C1 chemical feedstock, is described. This catalytic CO2 fixation afforded β-unsubstituted acrylates and vinyl ketones in good yields with broad scope and good functional group tolerance under mild reaction conditions. Cost-effective and easily handled polymethylhydrosiloxane was used as a reductant. Bis(silyl)acetal was proved to be the key intermediate in this reductive functionalization of CO2.

Synthesis method of terminal olefin type compound

The invention discloses a synthesis method of a terminal olefin type compound. The synthesis method comprises the following steps: taking a phosphorus ylide compound as a raw material and carbon dioxide as a C1 synthon in an organic solvent; reacting in the presence of a reducing agent to prepare the terminal olefin type compound, wherein the mole ratio of the phosphorus ylide compound to the reducing agent is 1 to (1 to 6) and the pressure of carbon dioxide is 1 to 3atm. The synthesis method disclosed by the invention has the advantages of convenience for operation, moderate conditions, widesubstrate applicable range and high efficiency; the defects in the prior art are filled; the synthesis method takes the carbon dioxide as synthon and carbon dioxide can be effectively absorbed so thata greenhouse effect is effectively prevented.

A methylene compound of preparation method and its application (by machine translation)

The invention discloses a methylene compound of preparation method and its application, relates to the field of organic synthesis, the process comprises: 1) in the presence of a three-valent metal salt catalyst, will arone compound and halogen methyl radical trialkyl ammonium salt dissolved in a solvent, 2) 80 - 130 °C reaction 1 - 4 hours, separated and purified α - the methyl radical is fragrant compounds, the reaction environment pollution is small, substrate and wide range of application. (by machine translation)

Iron-catalyzed α-methylenation of ketones with N,N-Dimethylacetamide: An approach for α,β-unsaturated carbonyl compounds

In this study, we developed a general iron-catalyzed α-methylenation of ketones by using N,N-dimethylacetamide as the one-carbon source. Various ketones, including aryl and alkyl ketones, enones, and dicarbonyl compounds were well tolerated to yield the corresponding α,β-unsaturated carbonyl compounds in the presence of an iron catalyst, peroxides, and N,N-dimethylacetamide under aerobic conditions. A general and facile iron-catalyzed α-methylenation of carbonyl compounds by using N-methyl amides as the one-carbon source was developed. Various carbonyl compounds (aryl- or alkyl-substituted, enones, 1,3-dicarbonyl compounds) were well tolerated to furnish the corresponding α,β-unsaturated carbonyl compounds in the presence of an iron catalyst, peroxides, and N-methyl amides under aerobic conditions.

Indenylidene-3-acetic acid process for preparing indene acetic acids

Process for preparing 5-fluoro-2-methyl-1-(p-methylsulfinylbenzylidene)-indene-3-acetic acid by reacting fluorobenzene with an acid halide, to form an indanone, reaction of the indanone with a methylthio (or methylsulfinyl)benzyl compound to form 5-fluoro-2-methyl-1-(p-methylthiobenzyl) or (p-methylsulfinylbenzyl)-indene and reacting said indene with a glyoxylic acid. The invention also relates to intermediates thereof and processes for said intermediates.