Process for the production of .beta.-carbolines by dehydrogenation
    4.
    发明授权
    Process for the production of .beta.-carbolines by dehydrogenation 失效
    通过脱氢生产β-咔啉的方法

    公开(公告)号:US4644062A

    公开(公告)日:1987-02-17

    申请号:US825718

    申请日:1986-02-03

    IPC分类号: C07D471/04

    CPC分类号: C07D471/04

    摘要: .beta.-carbolines of formula I ##STR1## wherein R=C.sub.1-5 alkylR.sup.4 =H, C.sub.1-5 alkyl or --(CH.sub.2).sub.n --OR with n=1 or 2 andR.sup.A =H, R, (CHR).sub.n --OR, OCH.sub.2 Ph, OPh, OPh(Cl,Br),OR,OCH.sub.2 Ph(Cl,Br) NRR, Cl or Br,wherein n and R have the above meanings and there are one or two R.sup.A 's are prepared, by dehydrogenation at reaction temperatures below ambient temperature in an inert solvent with tert-butyl hypochlorite and a tertiary amine.

    摘要翻译: 式I的β-咔啉其中R = C 1 -C 5烷基R 4 = H,C 1-5烷基或 - (CH 2)n -OR,其中n = 1或2,RA = H,R )n-OR,OCH 2 Ph,OPh,OPh(Cl,Br),OR,OCH 2 Ph(Cl,Br)NRR,Cl或Br,其中n和R具有上述含义,并且通过脱氢制备一个或两个RA 在低于环境温度的反应温度下在惰性溶剂中与次氯酸叔丁酯和叔胺反应。

    Process for the preparation of 2-bromo-8-ergolinyl compounds
    5.
    发明授权
    Process for the preparation of 2-bromo-8-ergolinyl compounds 失效
    制备2-溴-8-羟基苯乙烯基化合物的方法

    公开(公告)号:US4970314A

    公开(公告)日:1990-11-13

    申请号:US668344

    申请日:1984-11-05

    摘要: 2-bromo-8-ergolinyl compounds of the formula ##STR1## wherein R.sup.8 is NH.sub.2, NH--CONEt.sub.2, CONH.sub.2, ##STR2## and ##STR3## wherein R.sup.1 =C.sub.1-4 -alkyl andR.sup.2 =C.sub.1-4 -alkyl and benzyl,R.sup.9 and R.sup.10 each mean hydrogen or, together, a bond, and the substituent R.sup.8 can be in the .alpha.- or .beta.- position, and their acid addition salts,can be prepared from corresponding 8-ergolinyl compounds and their acid addition salts by bromination with elemental bromine in the presence of hydrogen bromide in a halogenated hydrocarbon.

    摘要翻译: 其中R 8是NH 2,NH-CONEt 2,CONH 2,IMA和其中R 1 = C 1-4 - 烷基和R 2 = C 1-4 - 烷基和苄基的2-溴-8-麦角酰基化合物 ,R 9和R 10各自表示氢或一起键,并且取代基R8可以在α或β-位,并且它们的酸加成盐可以由相应的8-麦角酰基化合物及其酸加成盐由 在卤代烃中溴化氢存在下用元素溴溴化。