32140-56-0

Upstream product

• 933-00-6 p-methylbenzenesulfenyl chloride 
• 42969-65-3 (R)-(+)-3-butyn-2-ol 
• 2028-63-9 but-3-yn-2-ol 

Downstream Products

• 32140-55-9 1-(buta-1,2-dien-1-ylsulfonyl)-4-methylbenzene 
• 83074-82-2 (2-Diethylamino-1-buten-1-yl)(p-tolyl)sulfoxid 
• 83074-88-8 1-(p-Tolylsulfinyl)-2-butanon 
• 36832-52-7 2-butyne tosylate 
• 32140-55-9 (-)-1.2-Butadienyl-p-tolylsulfon 

Relevant academic research and scientific papers

Phosphorus- and Sulfur-substituted Allenes in Synthesis, III. - β-Keto Sulfoxides from 3-Alkyn-1-ols via Allenic Sulfoxides

Allenic sulfoxides 3, readily available by sigmatropic rearrangement of sulfenic esters 2 of 3-alkyn-1-ols 1, can be transformed to give β-keto sulfoxides 9 by nucleophilic addition of diethylamine and subsequent hydrolysis of the formed enamines.