74291-91-1

Upstream product

• 19063-71-9 3,3-bis(methylthio)-1-phenyl-1-propan-1-one 
• 13636-88-9 3,3-bis(methylthio)-1-phenylprop-2-en-1-one 

Downstream Products

• 14371-10-9 (E)-3-phenylpropenal 
• 156944-22-8 3,3-Bis-methylsulfanyl-1-phenyl-butan-1-ol 
• 156944-25-1 3,3-bis(methylthio)-1-phenyl-1-propene 

Relevant academic research and scientific papers

Facile One Pot Thermal Dehydration and Dethioacetalization of β-Hydroxydithioacetals with Dimethyl sulphoxide: Synthesis of α,β-Unsaturated Aldehydes

The acyclic and cyclic β-hydroxydithioacetals 3a-m and 4a-b obtained by sodium borohydride reduction (or Grignard addition) of the corresponding β-oxodithioacetals 2a-m are shown to undergo facile one pot thermal dehydration and dethioacetalization in the presence of dimethyl sulphoxide to afford the corresponding ene- and polyene aldehydes 5a-m and 6a-b in good yields.The probable mechanism of dethioacetalization with dimethyl sulphoxide has also been discussed.