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Upstream product

• 824431-54-1 2,2-Dimethyl-5-((E)-5-phenyl-pent-4-enyl)-5-((E)-5-p-tolyl-pent-4-enyl)-[1,3]dioxane-4,6-dione 
• 824431-44-9 (E)-2,2-dimethyl-5-(5-phenylpent-4-enyl)-[1,3]dioxane-4,6-dione 
• 824431-53-0 1-((E)-5-Iodo-pent-1-enyl)-4-methyl-benzene 
• 76978-38-6 (E)-5-(4-methylphenyl)-4-penten-1-ol 
• 36884-75-0 (E)-5-phenylpent-4-enal 
• 13159-16-5 (E)-5-phenyl-4-penten-1-ol 
• 624-31-7 4-tolyl iodide 
• 22768-07-6 (E)-ethyl 5-phenylpent-4-enoate 
• 72651-96-8 (E)-2,2-dimethyl-5-(3-phenylallyl)-1,3-dioxane-4,6-dione 
• 14371-10-9 (E)-3-phenylpropenal 
• 824431-52-9 (6E)-2-[(4E)-5-phenylpent-4-enyl]-7-(p-tolyl)hept-6-enoic acid 

Relevant academic research and scientific papers

Competition between alkenes in intramolecular ketene-alkene [2 + 2] cycloaddition: What does it take to win?

(Chemical Equation Presented). In the course of developing a new synthetic methodology using ketenes in sequential cycloaddition steps, we were faced with a competition problem with molecules containing a ketene tethered to more than one reacting partner.