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Upstream product

• 123-72-8 butyraldehyde 
• 2114-00-3 2-bromo-1-phenyl-1-propanone 
• 93-55-0 1-phenyl-propan-1-one 
• 66323-99-7 trimethyl[(Z)-(1-phenyl-1-propenyl)oxy]silane 
• 37471-46-8 1-phenyl-1-trimethylsiloxypropene 
• 93250-21-6 3-hydroxy-2-methyl-1-phenyl-hexan-1-one 

Relevant academic research and scientific papers

Iron-Modified Mesoporous Silica as an Efficient Solid Lewis Acid Catalyst for the Mukaiyama Aldol Reaction

Fe-MCM-41 and Fe-SBA-15, two different iron-containing mesoporous silicas, were successfully synthesized by a straightforward and versatile method using iron acetylacetonate as a metal precursor. pH adjustment with ammonia during the synthesis was found t

Gallium(III) triflate catalyzed diastereoselective mukaiyama aldol reaction by using low catalyst loadings

A mild method for the diastereoselective Mukaiyama aldol reaction is reported. By using a low loading of the gallium(III) triflate catalyst (down to 0.01 mol-%), the transformation proceeds efficiently to afford the corresponding β-hydroxy ketones in yields up to 92a€‰%. To the best of our knowledge, this is the first report of a metal triflate acting as a safe, bench-stable, and slow-releasing source of triflic acid for the Mukaiyama aldol reaction. A diastereoselective Mukaiyama aldol reaction was performed under mild conditions with a low loading of the gallium(III) triflate catalyst (down to 0.01 mol-%). The transformation proceeded efficiently to afford the corresponding β-hydroxy ketones in yields up to 92a€‰%. Copyright

Direct, practical, and powerful crossed aldol additions between ketones and ketones or aldehydes utilizing environmentally benign TiCl4-Bu3N reagent

An efficient TiCl4-Bu3N - (cat. TMSCl)-promoted aldol addition between ketones and ketones or aldehydes was performed. This environmentally benign method is advantageous from a green chemical viewpoint with regard to yield, substrate

Phosphine/Lewis acid mediated Reformatsky-type reaction of α-bromoketone or -thioester derivatives

The combination of (?-tolyl)3P/TiCl4 effectively promoted the Reformatsky-type reaction of α-bromoketone or -thioester derivatives with various aldehydes, and the corresponding β-hydroxy carbonyl compounds were obtained in good yield

Diarylborinic acids as efficient catalysts for selective dehydration of aldols

Diarylborinic acids with electron-withdrawing substituents at their aryl groups are efficient Lewis acid catalysts for Mukaiyama aldol condensation and selective dehydration of anti-aldols to α,β-enones in the presence of syn-aldols. The Lewis acidities of diarylborinic acids are much higher than those of the corresponding arylboronic acids.

TiCl4/Bu3N/(catalytic TMSOTf): Efficient agent for direct aldol addition and claisen condensation

TiCl4/Bu3N conducts highly efficient cross aldol additions between different ketones and between ketones and aldehydes, in good to excellent yields with high syn-stereoselectivities. As an extension, direct Claisen condensation between methyl esters was also promoted by TiCl4/Bu3N with 0.05 equiv of TMSOTf co-catalyst.

Novel Reactive Silyl Enolates. Highly Stereoselective Aldol and Michael Reactions without Catalysts

Novel silyl enolates, prepared in situ from ketones and dimethylsilyl ditriflate (Me2Si(OTf)2) in the presence of a tertiary amine, reacted smoothly with electrophiles such as aldehydes, acetals, or α,β-unsaturated ketones without catalyst at -78 deg C to

Crossed Aldol Type Condensation Reactions in Aqueous Media

Directed crossed aldol type condensations can be carried out in aqueous media using α-halocarbonyl compounds, aldehydes, and metallic zinc or tin.

ERYTHRO-SELECTIVE ALDOL REACTION USING PHENYLDICHLOROBORANE

High erythro-selectivity could be attained in the aldol reaction of ethyl ketones with aldehydes using phenyldichloroborane in the presence of ethyldiisopropylamine.

SYNTHETIC CONTROL LEADING TO CHIRAL COMPOUNDS

A highly diastereoselective cross aldol reaction is developed using divalent tin enolates formed from stannous trifluoromethanesulfonate and carbonyl compounds.The reaction is extended to a highly enantioselective cross aldol reaction employing chiral dia