5394-22-9Relevant academic research and scientific papers
Preparation method of fine glufosinate
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Paragraph 0062; 0064; 0069; 0071; 0074; 0076; 0079; 0081, (2018/09/28)
The invention belongs to the technical field of organic compound synthesis and relates to a preparation method of fine glufosinate, in particular to a preparation method of fine glufosinate with L-homoserine as a raw material. According to the preparation method of fine glufosinate, L-homoserine prepared through a biological fermentation method serves as an initial raw material, L-3,6-di(2-halogenethyl)-2,5-diketopiperazine is prepared through the steps such as azeotropic dehydration and halogenation, a Serhiy Arbuzov reaction is conducted between L-3,6-di(2-halogen ethyl)-2,5-diketopiperazine and methyl phosphonic acid dibutyl, and fine glufosinate is prepared through a hydrolysis reaction. Compared with an existing preparation technology, the preparation method of fine glufosinate has the advantages that the total yield of fine glufosinate is greatly increased, the technological process is simple, and fine glufosinate is suitable for industrial production.
A convenient synthesis of D,L-selenomethionine
Ran,Cao,Wang,Lin
experimental part, p. 431 - 435 (2009/10/09)
A convenient synthesis of D,L-selenomethionine from α-bromo-γ- butyrolactone in 4 steps and 26% overall yield has been described.
