34714-00-6Relevant articles and documents
Synthesis method of laspeyresia pomonella sex pheromone
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Paragraph 0030; 0035; 0036; 0039; 0044; 0045, (2019/09/17)
The invention relates to a synthesis method of laspeyresi pomonella sex pheromone. The method comprises the steps as follows: (1) methanol is added to methyl sorbate as a raw material, and an intermediate A sorbic alcohol is obtained through 5% palladium-carbon catalytic hydrogenation reduction; (2) the intermediate A sorbitol obtained in (1) and acetic anhydride are subjected to a reaction in ethyl acetate, triethylamine and water to obtain an intermediate B sorbic acetate; (3) 6-chlorohexanol is subjected to a reaction with trimethylchlorosilane in toluene in the presence of ethyl acetate and triethylamine, after the reaction, water is added, stirring and layering are performed, and an intermediate C6-chlorohexanol trimethylsilyl ester is obtained; (4) the intermediate B sorbic acetate and the intermediate C6-chlorohexanol trimethylsilyl ester are subjected to a reaction with sodium sand in a toluene solution, then, water and sulfuric acid are dropwise added, layering and rectification are performed, and a target product E8,E10-dodecadiene-1-ol is obtained. The synthesis method has the advantages as follows: the laspeyresi pomonella sex pheromone is synthesized from available rawmaterials, the reaction route is short, and the selectivity and product yield can be increased.
Zinc mediated reactions in organic synthesis: Efficient synthesis of silyl ethers under mild conditions
Bandgar, Babasaheb Pandurang,Chavare, Satish Navnath,Pandit, Shivaji Sandu
, p. 125 - 128 (2007/10/03)
General and practical method for the syn the sis of silyl ethers in the presence of zinc powder under mild conditions has been described.
Carbofunctional silacyclobutanes 1. Synthesis of 1-(ω-hydroxyalkyl)silacyclobutanes
Ushakov,Fedorova
, p. 901 - 910 (2007/10/03)
A four-step synthesis of 1-(ω-hydroxyalkyl)- and 1-(4-hydroxyphenyl)silacyclobutanes was carried out. The influence of the structure of the initial compounds and the reaction conditions on the ratio of the reaction products formed was studied. The stabili