143317-47-9

Upstream product

• 100-52-7 benzaldehyde 
• 138079-58-0 (R)-2,3-Dimethyl-4-(triphenyl-λ⁵-phosphanylidene)-butan-2-ol 
• 73295-12-2 (S)-2,3-dimethyl-1,3-butanediol 
• 93748-48-2 (S)-3-hydroxy-2,3-dimethylbutyl 4-methylbenzenesulfonate 
• 131249-23-5 R-4-Iodo-2,3-dimethyl-2-butanol 
• 138079-59-1 R-(+)-(2,3-Dimethyl-3-hydroxybutyl)triphenylphosphonium iodide 

Relevant academic research and scientific papers

Phosphorus ylide chemistry investigated for dihydrotachysterol2 metabolite side-chain synthesis: The Wittig approach

The behaviour of the γ-oxido ylide of R-(3-hydroxy-2,3-dimethylbutyl)triphenylphosphonium iodide 4, to be used in the 25-hydroxylated DHT2 side-chain synthesis, was studied. The synthesis of the chiral phosponium salt 4 was done in an overall y