1707-07-9Relevant articles and documents
Preparation method of olefin phosphate compound
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Paragraph 0040; 0041; 0044; 0045, (2017/08/28)
The invention discloses a preparation method of an olefin phosphate compound. The method comprises the following steps: arylethylene and phosphate according to a mol ratio 1:4-6 are used as raw materials; ferric chloride and copper salt are used as catalysts, and di-tert-butyl peroxide is used as an oxidizing agent; the raw materials and triethylamine are mixed, an organic solvent is added, and under the protection of inert gas, a reaction is carried out at 90-110 DEG C; after the reaction ends, washing is carried out, rotary evaporation is used for removing the solvent, and column chromatography is carried out in order to obtain the olefin phosphate compound. Base metal copper and iron are used as catalysts, reactant arylethylene and phosphate have low price, toxicity is low, the oxidizing agent is green and environmentally friendly, and the yield of the synthetic reaction of the olefin phosphate compound is high.
Flash vacuum pyrolysis of dialkyl diazobenzylphosphonates forming styrenes via a Wittig type intermediate
Tomioka,Watanabe,Kobayashi,Hirai
, p. 5061 - 5064 (2007/10/02)
Phenylphosphonylcarbene generated in gas phase at high temperature produced 1,2-oxaphosphetane 1-oxides as a result of intramolecular C-H insertion into ester alkyl group, which underwent fragmentation leading to styrene derivatives and metaphosphate at higher temperature.