134983-95-2

Upstream product

• 134983-93-0 (R)-2-ethyl-2-(2-methoxycarbonylethyl) cyclopentanone 
• 134983-92-9 3-{1-Ethyl-2-[(E)-(S)-1-phenyl-ethylimino]-cyclopentyl}-propionic acid methyl ester 
• 102698-03-3 [2-Ethyl-cyclopent-(E)-ylidene]-((S)-1-phenyl-ethyl)-amine 
• 134983-94-1 3-((R)-6-Ethyl-1,4-dioxa-spiro[4.4]non-6-yl)-propionic acid methyl ester 
• 591-51-5 phenyllithium 

Relevant academic research and scientific papers

ASYMMETRIC MICHAEL ADDITION OF CHIRAL IMINES TO PHENYLVINYLSULFONE: PREPARATION OF KEY CHIRAL BUILDING BLOCKS FOR THE SYNTHESIS OF ASPIDOSPERMA AND HUNTERIA ALKALOIDS

Addition of chiral imine 8 to phenylvinylsulfone 9 led, after hydrolytic work-up to adduct 11 (91percent stereoselectivity).This derivative has been converted into target cyclopentanones 14 and 16.