Process for oxidizing a phenol to a p-benzoquinone
    91.
    发明授权
    Process for oxidizing a phenol to a p-benzoquinone 失效
    将酚氧化成对苯醌的方法

    公开(公告)号:US4522757A

    公开(公告)日:1985-06-11

    申请号:US527892

    申请日:1983-08-30

    IPC分类号: C07C46/08 C07C50/02

    CPC分类号: C07C46/08 C07C50/02

    摘要: Phenol or a substituted phenol is oxidized to the corresponding benzoquinone or substituted benzoquinone in the presence of a copper halide or copper nitrate catalyst promoted with an oxide or hydroxide of a Group II metal.

    摘要翻译: 在用II族金属的氧化物或氢氧化物促进的卤化铜或硝酸铜催化剂的存在下,苯酚或取代的苯酚被氧化成相应的苯醌或取代的苯醌。

    Amine promoted catalytic hydrogenation of carboxylic acid anhydrides to
lactones or esters
    93.
    发明授权
    Amine promoted catalytic hydrogenation of carboxylic acid anhydrides to lactones or esters 失效
    胺促进羧酸酐催化氢化成内酯或酯

    公开(公告)号:US4485246A

    公开(公告)日:1984-11-27

    申请号:US437725

    申请日:1982-10-29

    申请人: James E. Lyons

    发明人: James E. Lyons

    CPC分类号: C07D315/00

    摘要: The rate of selective hydrogenation of carboxylic acid anhydrides to esters or lactones in the presence of a ruthenium organophosphorous catalyst which contains or liberates a hydrogen halide during the hydrogenation, is improved by providing in the reaction medium prior to or during the hydrogenation a basic amino compound to remove the hydrogen halide.

    摘要翻译: 在氢化期间含有或释放卤化氢的钌有机磷催化剂存在下,羧酸酐对酯或内酯的选择性加氢速率通过在氢化之前或期间在反应介质中提供碱性氨基化合物 以除去卤化氢。

    Group VIII metal complex catalyzed halogen exchange reaction
    98.
    发明授权
    Group VIII metal complex catalyzed halogen exchange reaction 失效
    VIII族金属络合物催化卤素交换反应

    公开(公告)号:US3972953A

    公开(公告)日:1976-08-03

    申请号:US542998

    申请日:1975-01-22

    申请人: James E. Lyons

    发明人: James E. Lyons

    摘要: Alkyl halide exchange may be catalyzed under mild conditions in homogeneous solution by ligand stabilized, low valent, coordinatively unsaturated d.sup.6 or d.sup.8 Group VIII metal complexes of the formulaM.sup.n X.sub.n L.sub.xwherein M is a metal of Group VIII of the Periodic Table; X is chloride, bromide or iodide; n is 1 or 2; L is a neutral ligand such as CO; trialkyl or triaryl- phosphines, arsines, amines, or stibines and the like; x is an integer from 2-4 and L.sub.x represents x neutral ligands which may be the same or different.In this manner the halide group of one alkyl halide may be replaced by the halogen of another alkyl halide by a process of alkyl halide exchange.

    摘要翻译: 烷基卤交换可以在温和条件下在均相溶液中通过配位体稳定的低价,配位不饱和的d 6或d 8式VIII的金属络合物MnXnLx WHEREIN M是元素周期表的第Ⅷ族金属; X是氯化物,溴化物或碘化物; n为1或2; L是中性配体如CO; 三烷基或三芳基膦,胂,胺或苯乙烯等; x是2-4的整数,Lx表示可以相同或不同的x中性配体。

    Conversion of formamides to isocyanates
    99.
    发明授权
    Conversion of formamides to isocyanates 失效
    甲酰胺转化为异氰酸酯

    公开(公告)号:US3960914A

    公开(公告)日:1976-06-01

    申请号:US575096

    申请日:1975-05-06

    申请人: James E. Lyons

    发明人: James E. Lyons

    IPC分类号: C07C263/12 C07C118/04

    CPC分类号: C07C263/00

    摘要: Formamides of formula R--NHCHO where R is a lower alkyl, cycloalkyl, aryl or aralkyl can be converted to isocyanates of the formula R--N=C=O when contacted with certain ruthenium, palladium, or platinum dehydrogenation catalysts.

    摘要翻译: 当与某些钌,钯或铂脱氢催化剂接触时,其中R为低级烷基,环烷基,芳基或芳烷基的式R-NHCHO的甲酰胺可转化为式R-N = C = O的异氰酸酯。