119154-82-4

Upstream product

• 119125-41-6 ethyl 2-methyl-5-(2-methyl-1,3-dioxolan-2-yl)pentanoate 
• 41702-50-5 2-(4-ethoxycarbonyl-3(E)-pentenyl)-2-methyl-1,3-dioxolane 
• 29021-98-5 3-(2-methyl-[1,3]dioxolan-2-yl)-propan-1-ol 
• 73617-67-1 2-(5-hydroxy-4-methylpentyl)-2-methyl-1,3-dioxolane 
• 98-59-9 p-toluenesulfonyl chloride 
• 624-45-3 levulinic acid methyl ester 
• 24108-29-0 3-(2-methyl-[1,3]dioxolan-2-yl)-propionaldehyde 

Relevant academic research and scientific papers

SYNTHESIS OF THE PHEROMONES, (E)-3,7-DIMETHYL-2,7-OCTADIENYL PROPIONATE, (E)-3,7-DIMETHYL-2-OCTENE-1,8-DIOL AND FRONTALIN FROM A COMMON INTERMEDIATE

Ketal ester 9 has been prepared in five steps from methyl levulinate 4 (scheme 1).The propionate 1, diol 2 and (+/-) frontalin 3 were prepared from ester 9 employing the routes shown in scheme 2,3 and 4 respectively.The branched chain alkenes 13 and 20 were prepared conveniently from the primary alcohols 11 and 10 following the procedure of S.Wolff.Triethyl phosphonopropionate 7 has been prepared by methylating triethylphosphonoacetate with methyl iodide in the presence of sodium hydride.