摘要:
L'invention a pour objet un procédé de synthèse d'acides ω-fonctionnalisés de formule R-(CH 2 ) n -COOH dans laquelle R représente COOH ou NH 2 CH 2 à partir d'une charge d'origine naturelle contenant des acides gras hydroxylés.
摘要:
The invention relates to nitroso derivatives including carboxylic acid and phosphoric acid esters of hydroxy nitroso compounds that donate nitroxyl (HNO) under physiological conditions. The compounds and compositions of the invention are useful in treating and/or preventing the onset and/or development of diseases or conditions that are responsive to nitroxyl therapy, including heart failure, ischemia/reperfusion injury and cancer.
摘要:
This invention relates to novel compounds with ester linkage (s) capped with either electron deficient olefinic linkage (s) or group (s) or reactive functional groups (termed herein as "active methylene reagents"), and curable compositions prepared therefrom.
摘要:
The present invention relates to titanium catalysts for asymmetric synthesis reactions produced by bringing a reaction mixture obtained by contacting water and a titanium alkoxide into contact with an optically active ligand represented by the general formula (a), wherein R 1, R 2 , R 3 , and R 4 are independently a hydrogen atom, an alkyl group, or the like, and A* represents a group with two or more carbon atoms having an asymmetric carbon atom or axial asymmetry. The invention further relates to a process for asymmetric cyanation of imines, wherein the process comprises reacting an imine with a cyanating agent in the presence of the titanium catalyst.
摘要翻译:本发明涉及用于不对称合成反应的钛催化剂,其通过使水与烷氧基钛接触而获得的反应混合物与由通式(a)表示的光学活性配体接触而制备,其中R 1, R 2,R 3,R 4和R 4独立地为氢原子,烷基等,A *表示 具有两个以上具有不对称碳原子或轴向不对称的碳原子的基团。 本发明还涉及亚胺不对称氰化方法,其中该方法包括在钛催化剂存在下使亚胺与氰化剂反应。
摘要:
The invention is directed to methods of making organic compounds by metathesis and hydrocyanation. The method of the invention may be used, for example, to make industrial important organic compounds such as diacids, diesters, acid-amines, acid-alcohols, acid-nitriles, ester-amines, ester-alcohols, and ester-nitriles.
摘要:
The present invention relates to a novel malononitrile compound represented by the formula (A): wherein, R 1 represents C1 to C6 alkyl that may be substituted with halogen, C2 to C6 alkenyl that may be substituted with halogen, etc; R 2 represents hydrogen atom or C1 to C6 alkyl that may be substituted with halogen; R 3 represents hydrogen atom or C1 to C6 alkyl; R 4 represents hydrogen atom or C1 to C6 alkyl; R 5 represents C1 to C6 alkyl that may be substituted with halogen, C3 to C6 alkenyl that may be substituted with halogen, etc , or R 4 and R 5 may be combined at their terminal and represent ethylene that may be substituted with C1 to C3 alkyl or trimethylene that may be substituted with C1 to C3 alkyl; and Z 1 and Z 2 , which are the same or different, represent oxygen atom or sulfur atom. The malononitrile compound has an efficient pesticidal activity and can control effectively pests such as insect pests, acarine pests, nematode pests and the like.
摘要翻译:本发明涉及由式(A)表示的新型丙二腈化合物:其中R 1表示可被卤素取代的C1至C6烷基,可被卤素取代的C2至C6链烯基等; R 2表示氢原子或可被卤素取代的C 1〜C 6烷基; R 3表示氢原子或C 1〜C 6烷基; R 4代表氢原子或C 1至C 6烷基; R 5表示可以被卤素取代的C 1至C 6烷基,可被卤素取代的C 3至C 6烯基,或R 4,R 5可以在其末端被结合并表示可以 被可被C1-C3烷基取代的C1-C3烷基或三亚甲基取代; 和Z> 1 <和Z> 2'相同或不同,表示氧原子或硫原子。 丙二腈化合物具有有效的杀虫活性,可以有效控制害虫,如害虫,螨类害虫,线虫等。
摘要:
Bidentate ligand of formula (I), R R M -R-M R R wherein M and M each indenpendently represent P, As or Sb; R , R , R and R each independently represent the same or a different optionally substituted organic group and at least one of R , R , R and R contains a tertiary carbon atom through which the group is linked to M or M ; and R represents a bridging group based on a trimethylene group connecting M and M of which the middle carbon atom is double bonded to a non-metal element chosen from group 14, 15 or 16 of the periodic table of elements. Catalyst comprising this bidentate ligand and carbonylation process n which this catalyst is used.
摘要翻译:式(I)的二齿配体,R 1 R 2 M 1 -R M 2 R 3,其中M 1和M 2各自独立地表示P,As或 锑; R 1,R 2,R 3和R 4各自独立地表示相同或不同的任选取代的有机基团,并且R 1,R 2,R 3, 并且R 4含有叔碳原子,该基团通过该叔碳原子与M 1或M 2连接; 并且R表示基于连接M 1和M 2的三亚甲基的桥连基团,其中中碳原子与选自元素周期表第14,15或16族的非金属元素双键键合 。 包含该二齿配体和使用该催化剂的羰基化方法n的催化剂。
摘要:
Bidentate ligand of formula (I), R R M -R-M R R wherein M and M each indenpendently represent P, As or Sb; R , R , R and R each independently represent the same or a different optionally substituted organic group and at least one of R , R , R and R contains a tertiary carbon atom through which the group is linked to M or M ; and R represents a bridging group based on a trimethylene group connecting M and M of which the middle carbon atom is double bonded to a non-metal element chosen from group 14, 15 or 16 of the periodic table of elements. Catalyst comprising this bidentate ligand and carbonylation process n which this catalyst is used.
摘要翻译:式(I)的二齿配体,R 1 R 2 M 1 -R M 2 R 3,其中M 1和M 2各自独立地表示P,As或 锑; R 1,R 2,R 3和R 4各自独立地表示相同或不同的任选取代的有机基团,并且R 1,R 2,R 3, 并且R 4含有叔碳原子,该基团通过该叔碳原子与M 1或M 2连接; 并且R表示基于连接M 1和M 2的三亚甲基的桥连基团,其中中碳原子与选自元素周期表第14,15或16族的非金属元素双键键合 。 包含该二齿配体和使用该催化剂的羰基化方法n的催化剂。
摘要:
.he invention relates to a compound of formula I wherein X represents a low alkylen group, an arylene group or an alkarylene group, L1 has formula II wherein Y1 represents oxygen, sulphur or N-R17, R11, R12, R13, R14, R15, R16, R17 independently represent hydrogen, alkyl or aryl, L2 has formula III wherein Y2 represents oxygen, sulphur or N-R27, R21, R22, R23, R24, R25, R26, R27 independently represent hydrogen, alkyl or aryl wherein L1 and L2 can be identical or different. The inventive compound is suitable for use as a catalyst or for producing a catalyst system.
摘要:
The invention relates to a method for producing cyanovaleric acid or esters thereof by reacting 2-, 3- or 4-pentene nitrile or mixtures thereof with carbon monoxide and with a compound containing hydroxyl groups in the presence of a catalyst system. Said catalyst system comprises: (i) a palladium (II) compound, (ii) a bidentate diphosphine ligand and (iii) an anion source. The invention also relates to novel catalyst systems with diphosphine ligands of the bis(phosphinomethyl)amine type.