87143-57-5

Upstream product

• 75-75-2 methanesulfonic acid 
• 87143-50-8 Diisopropyl-carbamic acid (R)-2-((R)-hydroxy-phenyl-methyl)-cyclopent-(Z)-ylidenemethyl ester 
• 67-56-1 methanol 
• 1120-80-5 cyclopent-1-ene-1-methanol 
• 87143-44-0 1-cyclopentenylmethyl N,N-diisopropylcarbamate 

Downstream Products

• 87143-53-1 (3α,3aα,6aα)-hexahydro-3-phenyl-1H-cyclopenta[c]furanon-1-one 

Relevant academic research and scientific papers

Stereoselective synthesis of highly substituted bicyclic γ-lactones using homoaldol addition of 1-(1-cycloalkenyl)methyl carbamates

Stereoselective addition of aldehydes 4 to metallated 1-(1-cycloalkenyl) methyl N,N-diisopropylcarbamates 1 gave cyclic homoaldol adducts 6. By applying the (-)-sparteine method, enantiomerically enriched products were obtained. These were oxidatively cyc

HIGHLY DIASTEREOSELECTIVE SYNTHESIS OF DI-AND TRISUBSTITUTED 4-BUTANOLIDES FROM ALDEHYDES AND KETONES VIA THREE-CARBON-EXTENSION BY ALLYLIC HOMOENOLATE REAGENTS

Lithiated or titanated O-allyl carbamates 7 or 8 add to aldehydes and ketones regio- and diastereoselectively to yield-O-(4-hydroxy-1-alkenyl)carbamates 9, which are converted to γ-lactones 12 with an one-pot procedure.