256462-55-2

Upstream product

• 111-28-4 2,4-hexadiene-1-ol 
• 55022-46-3 4-methyl-N-prop-2-ynylbenzenesulfonamide 
• 17102-64-6 Sorbyl alcohol 
• 63072-78-6 hexa-2,4-dienyl bromide 
• 98-59-9 p-toluenesulfonyl chloride 

Downstream Products

• 1334688-20-8 N-hexa-2,4-dienyl-4-methyl-N-[3-(trimethylsilyl)-2-propyn-1-yl]benzenesulfonamide 

Relevant academic research and scientific papers

Cobalt-catalyzed versus uncatalyzed intramolecular Diels-Alder cycloadditions

The intramolecular [4+2] cycloadditions of dienynes was investigated using cobalt-based catalysts. Substrates without substitution on alkyne moiety were found to react under thermal activation. The use of a cobalt salt as catalyst made reactions cleaner by limiting the formation of byproducts. Cycloadditions with dienynes possessing a substituent on the alkyne pattern occurred only in presence of a cobalt catalyst which displayed a moderate to good activity depending on the substrate patterns.

Au(PPh3)OPOF2-catalyzed intramolecular [4+2] cycloaddition reaction of dienynes

Solvolysis of Au(PPh3)PF6 afforded Au(PPh 3)OPOF2 which is an effective catalyst in the intramolecular [4+2] cycloaddition of unactivated dienynes bearing a terminal alkyne.