89003-97-4

Upstream product

• 26260-02-6 2-iodobenzaldehyde 
• 98-86-2 acetophenone 
• 20913-05-7 (Benzoylmethylene)triphenylphosphorane 
• 1099-45-2 ethyl (triphenylphosphoranylidene)acetate 

Downstream Products

• 5653-33-8 2-(9-fluorenylidene)-1-phenylethanone 

Relevant academic research and scientific papers

Palladium(II)-Catalyzed Direct Access to Indeno[1,2-c]isochromen-5(11H)-Ones via Intramolecular Oxypalladation-Initiated Cascade Process

A palladium(II)-catalyzed cascade approach was established for the synthesis of indeno[1,2-c]isochromen-5(11H)-ones starting from 2-alkynyl tert-butyl benzoates bearing a pendant α,β-unsaturated carbonyl moiety in high yields (up to 99%) under mild condit

Iodine promoted cascade cycloisomerization of 1-en-6,11-diynes

An iodine promoted cascade cycloisomerization of 1-en-6,11-diynes is presented for the easy preparation of tetrahydrobenzo[f]isoquinolines. This developed reaction system is identified as having good functional-group applicability and can be scaled up to gram quantities. In this transformation, two new cyclic frameworks and one carbonyl group are formed with four new bonds constructed. Additionally, the resulting iodo-substituted compounds could be further derived through simple elimination reactions.

Synthesis of 2-Acylbenzo[b]thiophenes via Cu-Catalyzed α-C-H Functionalization of 2-Halochalcones Using Xanthate

An efficient protocol is described for the synthesis of 2-acylbenzo[b]thiophenes from easily accessible 2-iodochalcones through α-C-H functionalization using Cu(OAc)2 catalyst and xanthate as sulfur source. Less reactive 2-bromochalcones also yielded the corresponding 2-acylbenzothiophenes in good yield. The reaction proceeds via in situ incorporation of sulfur followed by copper-catalyzed cyclization to generate 2-acylbenzothiophenes without external acyl source. The synthetic importance is showcased by synthesis of 1-(5-hydroxybenzothiophene-2-yl)ethanone, which is a known pre-mRNA splicing modulator.

Palladium-Catalyzed Internal Nucleophile-Assisted Hydration-Olefin Insertion Cascade: Diastereoselective Synthesis of 2,3-Dihydro-1H-inden-1-ones

A novel palladium-catalyzed hydration-olefin insertion cascade assisted by internal nucleophiles was developed for the synthesis of biologically significant 2,3-dihydro-1H-inden-1-ones under mild conditions. A detailed mechanistic study revealed that the assistance of the internal nucleophiles is crucial to trigger the cascade reaction via nucleopalladation of the alkyne moiety. The overall reaction is equivalent to regioselective hydration of alkynes followed by intramolecular Michael addition. This highly efficient and 100% atom-economical domino sequence afforded cis-2,3-disubstituted 2,3-dihydro-1H-inden-1-ones in excellent yields (up to 99%) with complete diastereoselectivity.

N- (2 -AMINOPHENYL) BENZAMIDE DERIVATIVES AS HISTONE DEACETYLASE INHIBITORS

This invention relates to the discovery of novel compounds, or pharmaceutically acceptable salts thereof, which possess HDAC inhibitory activity. In particular, the compounds of the invention demonstrate selectivity towards Class I HDAC enzymes, and are a

Gold-catalyzed tandem [3,3]-propargyl ester rearrangement leading to (E)-1 H -inden-1-ones

An efficient method for the synthesis of (E)-1H-inden-1-ones using gold-catalyzed tandem [3,3]-propargyl ester rearrangement followed by Michael addition under mild reaction conditions has been developed. The resulting products are important frameworks fo

N- (2 -AMINOPHENYL) BENZAMIDE DERIVATIVES AS HISTONE DEACETYLASE INHIBITORS

This invention relates to the discovery of novel compounds, or pharmaceutically acceptable salts thereof, which possess HDAC inhibitory activity. In particular, the compounds of the invention demonstrate selectivity towards Class I HDAC enzymes, and are a