Monosubstituted oxalic acid derivatives of the general formula (I) [A]+[O-C(O)-C(O)-O-X]-, wherein the meaning is: for [A]+, a cation made from an organic moiety A having a formally positively charged heteroatom selected from the group consisting of nitrogen, phosphorus and sulfur, X is a C1 to C30 organic residue, and wherein the following compounds (I) are disclaimed:tetramethylammonium monomethyloxalate methyltri(alkyl)ammonium monomethyloxalate trimethyl(1-hydroxyethyl)ammonium monomethyloxalate methyltriethylammonium monomethyloxalate tetraethylammonium monomethyloxalate n-propyltriethylammonium mono-n-propyloxalate n-butyltriethylammonium mono-n-butyloxalate benzyltriethylammonium monobenzyloxalate cyclohexyldimethylammonium monomethyloxalate dimethyl-phenylammonium monomethyloxalate. Tetrabutylammonium monomethyloxalate N-methylpyridinium monomethyloxalate N-ethylpyridinium monoethyloxalate N-n-propylpyridinium mono-n-propyloxalate N-n-butylpyridinium mono-n-butyl-oxalate N-benzylpyridinium monobenzyloxalate N-methyl-isochinolinium monomethyloxalate N-ethyl-isochinolinium monoethyloxalate N-n-propyl-isochinoliniummono-n-propyloxalate N-n-butyl-isochinolinium mono-n-butyloxalate N-benzyl-isochinolinium monobenzyloxalate.
单取代
草酸衍
生物的一般式(I) [A]+[O-C(O)-C(O)-O-X]-,其中含义为:对于[A]+,是由有机基团A形成的阳离子,其正式带正电的杂原子选自氮、
磷和
硫组成的群,X是一个C1到C30的有机残基,且以下化合物(I)被否认:
四甲基铵单甲氧
草酸酯 甲基三(烷基)
铵单甲氧
草酸酯 三甲基(1-羟乙基)
铵单甲氧
草酸酯 甲基三乙基
铵单甲氧
草酸酯 四乙基铵单甲氧
草酸酯 正丙基三乙基
铵单正丙氧
草酸酯 正丁基三乙基
铵单正丁氧
草酸酯 苄基三乙基
铵单苄氧
草酸酯 环己基二甲基
铵单甲氧
草酸酯 二甲基苯基
铵单甲氧
草酸酯。 四丁基
铵单甲氧
草酸酯 N-
甲基吡啶铵单甲氧
草酸酯 N-
乙基吡啶铵单乙氧
草酸酯 N-正丙基
吡啶铵单正丙氧
草酸酯 N-正丁基
吡啶铵单正丁氧
草酸酯 N-
苄基吡啶铵单苄氧
草酸酯 N-甲基
异喹啉铵单甲氧
草酸酯 N-乙基
异喹啉铵单乙氧
草酸酯 N-正丙基
异喹啉铵单正丙氧
草酸酯 N-正丁基
异喹啉铵单正丁氧
草酸酯 N-苄基
异喹啉铵单苄氧
草酸酯。