244241-64-3

Upstream product

• 244241-61-0 (1S,3aS,4S,7aS)-(4-benzenesulfonyl-7a-methyl-octahydro-inden-1-yl)-acetic acid ethyl ester 
• 74-88-4 methyl iodide 
• 66613-24-9 (phenylsulfanyl)methyl vinyl ketone 
• 20614-49-7 1-phenylsulfanyl-but-3-en-2-ol 
• 108-98-5 thiophenol 
• 244290-94-6 (1R,4aR,7aR)-4a-methyltetrahydro-1-oxacyclopropaindene-2,5-dione 
• 244241-69-8 (7aR)-7a-methyl-4-phenylsulfanyl-2,3,7,7a-tetrahydro-6H-indene-1,5-dione 
• 244241-59-6 (3aS,4S,7aR)-4-benzenesulfonyl-7a-methyl-octahydro-inden-1-one 
• 244241-66-5 (7aR)-4-benzenesulfonyl-7a-methyl-2,3,7,7a-tetrahydro-6H-indene-1,5-dione 
• 244241-60-9 (Z,3aS,4S,7aR)-(4-benzenesulfonyl-7a-methyl-octahydro-inden-1-ylidene)-acetic acid ethyl ester 

Relevant academic research and scientific papers

Catalytic enantioselective annulation using phenylsulfanylmethyl vinyl ketone. An approach to trans-hydrindane building blocks for ent-vitamin D3 synthesis

An enantioselective synthesis of the ent-vitamin D3 northern portion building block is presented. The key step involves phenylalanine-catalyzed annulation of 2-methylcyclopent-2-en-1-one with phenylsulfanylmethyl vinyl ketone.