10.
    发明专利
    未知

    公开(公告)号:DE1295749B

    公开(公告)日:1969-05-22

    申请号:DEM0062445

    申请日:1964-09-16

    Applicant: MONTEDISON SPA

    Abstract: 1,052,319. Piperazine dicarboxylic esters. MONTECATINI SOCIATA GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. Sept. 9, 1964 [Sept. 18, 1963], No. 36903/64. Heading C2C. [Also in Division C3] N,N 1 - bis - (2 - carbomethoxyethyl) - - piperazine is prepared by the reaction of methyl acrylate and piperazine. N,N 1 - bis - (2 - carbomethoxyethyl) - 2 - methyl - piperazine is prepared by reacting methyl acrylate and 2-methyl-piperazine. N,N 1 - bis - (3 - carbomethoxypropyl) - piperazine is prepared by reacting methyl-γ-chlorobutyrate, piperazine, sodium carbonate and potassium iodide.

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