1028192-71-3

Upstream product

• 434283-01-9 4-methyl-1-undecanol 
• 98-59-9 p-toluenesulfonyl chloride 
• 106-22-9 Citronellol 
• 41144-01-8 (+/-)-citronellyl tosylate 
• 1028192-70-2 2,6-dimethyl-2-tridecene 
• 943126-30-5 4-methylundecanal 

Relevant academic research and scientific papers

Pheromone synthesis. Part 259: Synthesis of seven methyl-branched hydrocarbons as the pheromone candidates for female Korean apricot wasp, Eurytoma maslovskii

Seven new methyl-branched hydrocarbons were synthesized, which were the pheromone candidates of the female Korean apricot wasp (Eurytoma maslovskii). They are (Z)-15-methyl-7-nonacosene (1), (Z)-17-methyl-7-hentriacontene (2), 3,7-dimethylheptacosane (3), 8,12-dimethyltriacontane (4), 8,18-dimethyltriacontane (5), 3,7,11-trimethylnonacosane (6), and 3,7,17-trimethylnonacosane (7). All of them were synthesized as stereoisomeric mixtures, employing short and simple routes. Hydrocarbon 7 was synthesized via 4,8-dimethyldecanal (71, tribolure), the red flour beetle pheromone. The hydrocarbons 1,2,3 and 6 were identified by GC–MS analysis as the components (with unknown stereochemistry) of the female-specific secretion of E. maslovskii.

Ultrasound assisted synthesis of 5,9-dimethylpentadecane and 5,9-dimethylhexadecane - The sex pheromones of Leucoptera coffeella

Racemic 5,9-dimethylpentadecane and 5,9-dimethylhexadecane, the major and minor constituents, respectively, of the sex pheromone of Leucoptera coffeella, have been synthesized from citronellol in 56-58% overall yield through six steps. Ultrasound irradiation efficiently supported tosylation of alcohols (two steps) as well as the subsequent cross coupling reactions with the pertinent Grignard reagents (also two steps).