4.
    发明专利
    未知

    公开(公告)号:FR1506655A

    公开(公告)日:1967-12-22

    申请号:FR86737

    申请日:1966-12-08

    Applicant: BOFORS AB

    Abstract: Nitrobiphenyls and nitroterphenyls are prepared by reacting, in presence of Cu2O and a solvent, an aromatic nitro-compound with an aromatic compound substituted by (a) a halogen atom and an electron-attracting group in ortho-position thereto, or (b) an iodine atom, both reactants being compounds of the benzene series. Examples describe the production of 2,21-(and 2,4-)dinitrobiphenyl, and a number of methoxy-substituted nitrobiphenyls and nitroterphenyls.

    THE PRODUCTION OF NITRO-SUBSTITUTED BENZENE COMPOUNDS

    公开(公告)号:GB1208502A

    公开(公告)日:1970-10-14

    申请号:GB2826268

    申请日:1968-06-13

    Applicant: BOFORS AB

    Abstract: 1,208,502. Production of nitro-substituted benzene compounds. BOFORS A.B. 13 June, 1968 [15 June, 1967], No. 28262/68. Heading C2C. A compound of formula wherein each of the substituents X 1 to X 5 is either a hydrogen atom or a nitro group is prepared by heating a benzene compound having a carboxyl group or an alkyl group convertible to a carboxyl group in the position of the nitro group shown in the structural formula and optionally containing one or more nitro groups, with nitric acid under pressure. The examples describe the preparation of o-, m- and p-dinitrobenzenes and nitrobenzene.

    A METHOD OF PRODUCING 2-(NITRO-PHENYL) ALKYL HALIDES

    公开(公告)号:GB1201210A

    公开(公告)日:1970-08-05

    申请号:GB3683368

    申请日:1968-08-01

    Applicant: BOFORS AB

    Abstract: 1,201,210. 2-(Nitro-phenyl) alkyl halides. BOFORS A.B. 1 Aug., 1968 [4 Aug., 1967], No. 36833/68. Heading C2C. A method of preparing a 2-(nitrophenyl) alkyl halide comprises halogenating a 2-(nitrophenyl) alkanol with a halogenation agent. Specified halogenation agents include thionyl chlorides, phosphorus tri- and pentachloride, cone. hydrochloric acid, hydriodic acid and phosphorus tribromide or triiodide. Examples describe the preparation of 2-(o-nitrophenyl) ethyl chloride using thionyl chloride or concentrated hydrochloric acid, and of 2-(o-nitrophenyl) ethyl bromide using hydrobromic acid.

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