Quinazoline derivs prepn - from isocyanatobenzoic acid and propargylamine

    公开(公告)号:DE2228259A1

    公开(公告)日:1973-12-20

    申请号:DE2228259

    申请日:1972-06-09

    Applicant: BASF AG

    Abstract: Process comprises reacting a cpd. (I) with a cpd. (II) and cyclising the resulting cpd. (III) to give the 2-methylene-2,3-dihydro-5-oxo- 5H-thiazolo-[21,31-b]quinazoline (IV): (where R1, R2, R3 are H or aliphatic gp., or R3 may be halogen, OH, CF3, alkoxy, alkylthio, NO2, CN, carboxyamido, sulphonic acid gp. or -NR4R4 where each R4 is H or aliphatic gp.). Cpds. (IV) are inflammation preventing agents, analgesics and sedatives, fungicides, bactericides and inters. for pharmaceuticals, dyes and pesticides.

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