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    • 2. 发明授权
    • Tris-azetidinedione derivative 1,3,5-triazin-2,4,6-triones
    • 三 - 氮杂二酮衍生物1,3,5-三嗪-2,4,6-三嗪
    • US4612374A
    • 1986-09-16
    • US811855
    • 1985-12-20
    • Shenghong A. Dai
    • Shenghong A. Dai
    • C07D205/10C07D205/12C07D403/14C08G18/32C08G18/50C08G18/71C08G18/78
    • C07D403/14C07D205/10C07D205/12C08G18/3225C08G18/3228C08G18/5024C08G18/714C08G18/7881
    • Novel isocyanato-azetidinedione compounds are provided which have the formula ##STR1## wherein R and R.sub.1 can independently selected from hydrogen and hydrocarbyl or can be joined together and along with the carbon to which they are attached represent a cycloalkane residue having 4 to 6 ring carbon atoms, y is an integer from 1 to 7 and X is a hydrocarbon radical having a valency of y plus one.The monoisocyanate compounds are used as intermediates to provide further novel azetidinedione containing derivatives in the form of azetidinedione-isocyanurates (II) and azetidinedione-urethanes (III).All three classes of compounds can be employed as acid scavenging agents for stablizing various kinds of halogenated polymer systems. Notably, (I) and (III) form highly useful polyamide-polyureas and polyamide-polyurethanes respectively by reaction with organic polyamines.
    • 提供具有下式的新型异氰酸根合 - 氮杂二酮化合物:其中R和R 1可以独立地选自氢和烃基,或者可以连接在一起,并与它们所连接的碳一起代表具有4-6个环的环烷烃残基 碳原子,y为1〜7的整数,X为化合价y为1的烃基。 单异氰酸酯化合物用作中间体以提供含氮杂二酮 - 异氰脲酸酯(II)和氮杂二酮 - 氨基甲酸酯(III)形式的另外新的含有氮杂环丁二酮的衍生物。 所有三类化合物都可以用作稳定各种卤化聚合物体系的酸清除剂。 值得注意的是,(I)和(III)分别通过与有机多胺反应形成高度有用的聚酰胺 - 聚脲和聚酰胺 - 聚氨酯。
    • 5. 发明授权
    • Process for producing N-substituted amides
    • 制备N-取代酰胺的方法
    • US4171302A
    • 1979-10-16
    • US853501
    • 1977-11-21
    • Jean AbblardMichel Baudoin
    • Jean AbblardMichel Baudoin
    • C07D207/40C07D207/404C07D207/44C07D207/448C07D207/452C07D205/10
    • C07D207/404C07D207/448C07D207/452
    • A process of preparing a N-substituted imide as disclosed, which is carried out in accordance with the equation: ##STR1## wherein R is an alkyl radical containing 1 to 8 carbon atoms, or an aryl radical having 1 or 2 phenyl rings bearing up to 5 substituents selected from the group consisting of 1 to 3 atoms of halogen, 1 to 2 nitro, amino, or hydroxy groups, 1 to 4 alkyl radicals, and 1 to 2 alkoxy or alkylthiol radicals each containing 1 to 4 carbon atoms, or a hexyl radical, optionally substituted;R' is a single bond or a hydrocarbon chain containing from 1 to 4 carbon atoms, in which two contiguous carbons may belong to a phenyl ring, said hydrocarbon chain being saturated or unsaturated and optionally substituted andR" is a hydrogen atom, an alkaline metal atom, an ammonium atom or a lower alkyl having 1 to 4 carbon atoms, wherein the cyclization of the amic acid, R--NH--CO--R'--COOR" is carried out in the presence of a mixed catalyst which results from the association of the formula, A B, in which A is a strong inorganic or organic acid and B is a Lewis base.
    • 所公开的制备N-取代的酰亚胺的方法,其按照以下方程式进行:其中R是含有1至8个碳原子的烷基或具有1或2个苯环的芳基, 至5个选自1至3个卤素原子,1至2个硝基,氨基或羟基,1至4个烷基和1至2个各自含有1至4个碳原子的烷氧基或烷基硫醇基团的取代基,或 己基,任选取代; R'是单键或含有1至4个碳原子的烃链,其中两个连续的碳可以属于苯环,所述烃链是饱和或不饱和的且任选被取代,R“是氢原子, 碱金属原子,铵原子或具有1至4个碳原子的低级烷基,其中酰胺酸R-NH-CO-R'-COOR“的环化在混合催化剂存在下进行,结果 由式AB的结合,其中A是强无机或有机酸,B是路易斯碱。