首页>
外国专利>
Highly active peroxotungsten catalyst used in oxidation reactions in both solvent- and halogen-free systems, contains a nitrogen-containing phosphonic acid (or its alkali or ammonium salt) as stabilizer
Highly active peroxotungsten catalyst used in oxidation reactions in both solvent- and halogen-free systems, contains a nitrogen-containing phosphonic acid (or its alkali or ammonium salt) as stabilizer
A peroxotungsten catalyst contains a nitrogen-containing phosphonic acid (or its alkali or ammonium salt) as stabilizer. The phosphorus:tungsten ratio being 1:50-10:1. A peroxotungsten catalyst contains a nitrogen-containing phosphonic acid (or its alkali or ammonium salt) of formula (I) as stabilizer. The phosphorus:tungsten ratio being 1:50-10:1. (Y-(CH2-)p)nN(-CHq(-PO3H2)3-q)3-n (I) n = 0, 1 or 2; q = 1 or 2; p = an integer 0-16; Y = H, OH, OR1, R1CO, R1COO, CHO, COOH, COOR1, SO3H, F, Cl, Br or R1R2N, with the proviso that Y is not H when q = n = 2; and R1 and R2 = 1-18C alkyl, 5-12C cycloalkyl, 6-18C homo- or hetero-aryl or 6-24C alkylheteroaryl. An Independent claim is also included for oxidation of organic compounds with hydrogen peroxide at 0-140 deg C in a one- or two-phase system in the presence of the catalyst in amounts of 0.0001-1 mol.W per mol. H2O2, the mol. ratio of H2O2:organic substrate being 0.5-10:1.
展开▼
机译：过氧钨催化剂包含含氮的膦酸（或其碱金属或铵盐）作为稳定剂。磷：钨的比例为1∶50-10∶1。过氧钨催化剂包含式（I）的含氮膦酸（或其碱金属或铵盐）作为稳定剂。磷：钨的比例为1∶50-10∶1。 （Y-（CH2-）p）nN（-CHq（-PO3H2）3-q）3-n（I）n = 0、1或2; q = 1或2; p ＝ 0-16的整数; Y ＝ H，OH，OR 1，R 1 CO，R 1 COO，CHO，COOH，COOR 1，SO 3 H，F，Cl，Br或R 1 R 2 N，前提是当q = n = 2时Y不是H; R 1和R 2 ＝ 1-18C烷基，5-12C环烷基，6-18C均-或杂芳基或6-24C烷基杂芳基。还包括一个独立的权利要求，用于在一或两相体系中，在0.0001 mol.W / mol的催化剂存在下，在0-140℃下用过氧化氢氧化有机化合物。 H2O2，摩尔。 H 2 O 2：有机底物的比率为0.5-10∶1。
展开▼
