350236-87-2

Upstream product

• 1575722-58-5 (S)-2-(((4-methoxybenzyl)oxy)diphenylmethyl)-1-tosylpyrrolidine 
• 22348-32-9 (S)-diphenylprolinol 
• 98-59-9 p-toluenesulfonyl chloride 

Downstream Products

• 1575722-58-5 (S)-2-(((4-methoxybenzyl)oxy)diphenylmethyl)-1-tosylpyrrolidine 
• 1426440-35-8 C₂₄H₂₄N₄O₂S 
• 1002359-28-5 (S)-2-(methoxydiphenylmethyl)-1-tosylpyrrolidine 
• 1002359-26-3 4-methyl-N-(4-oxo-5,5-diphenylpentyl)benzenesulfonamide 
• 1002359-27-4 2-(diphenylmethylene)-1-tosylpyrrolidine 

Relevant academic research and scientific papers

Proton-exchanged montmorillonite-mediated reactions of methoxybenzyl esters and ethers

Proton-exchanged montmorillonite (H-mont) was found to be an eco-friendly and cost-effective catalyst for the generation of O-methylated quinone methides (QM) from the corresponding p or o-methoxybenzyl esters and ethers. Nucleophilic trapping of the O-methylated QM with arenes, alcohols, 1,3-dicarbonyl compounds, silyl enol ethers, and allylsilanes has been carried out, respectively, leading to eco-friendly benzylation reactions. Using this protocol, H-mont-mediated deprotection of PMB-protected esters and ethers have been realized for the first time. This work would pave the way for further exploration in O-alkylated QM that are of chemical and biological significance.

Lewis acid-mediated rearrangement of activated cyclic amines: A facile synthetic protocol for the preparation of amino carbonyl compounds

(Chemical Equation Presented) Ring opening of activated cyclic amines to produce amino carbonyl compounds has been studied in the presence of Lewis acids. Whereas five- and six-membered rings cleave and rearrange via a 1,2-hydride shift, reaction in three

Asymmetric borane reduction of prochiral ketones using imidazolium-tagged sulfonamide catalyst

A novel sulfonamide catalyst based on a room temperature ionic liquid (RTIL) has been developed for the enantioselective reduction of ketones in refluxing toluene. The optically active secondary alcohol products were obtained in good enantiomeric excess and excellent yields. The imidazolium-tagged sulfonamide catalyst can be readily recovered and reused four times without any significant loss of catalytic activity.