abstract |
COMPOUND OF 2-GLIOXYL-CYCLLOHEX-1-EN-3, 5-DIONES OF FORMULA I: WHERE X IS OH, OR7, NH2 OR OCOR7; R1 TO R4 ARE HYDROGEN OR ALKYL; R5 IS ALKYL, PHENYL OR NAPHTHYL, OR SATURATED OR UNSATURATED HETERO-CYCLE THAT HAS ONE OR MORE HETEROATOMES, EACH ONE OF WHICH IS SUBSTITUTED OR NOT BY ONE OR MORE THAN SAME OR DIFFERENT SUBSTITUTES, AS R6, OR6; OR6 R6 IS RENT SUBSTITUTED ONO BY HALOGEN; R7 IS EQUAL TO R5, HALOGEN AND CN, OH, COOH, NO2, NH2, SO3H AND SH; AND R7 AND R8 ARE EQUAL TO R5. |