摘要:
1,4-Naphthoquinones of formula (I), methods for their preparation, pharmaceutical and veterinary formulations thereof and the use thereof in human and animal therapy are disclosed. ##STR1## Particularly preferred compounds of formula (I) are 2-(4'-t-butylcyclohexyl)-3-hydroxy-1,4-naphthoquinone and 2-hydroxy-3-(4'-t-pentylcyclohexyl)-1,4-naphthoquinone. The compounds are of value as antiprotozoal agents, in particular antimalarial and anticoccidial agents.
摘要:
Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae ##STR1## where Y.sub.1 is alkoxy, Y.sub.2 is chloro or alkoxy and Y.sub.3 is hydrogen, chloro or alkoxy.Methods are provided for synthesizing the reductant precursors.
摘要:
Ortho-quinones with alkyl, olefin polymer, or halogen substituents and a process for the preparation of these compounds comprising a base catalyzed halogen oxidation of alkylated phenol.
摘要:
A fire retardant system comprising a compound having within its structure the 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dione or 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanophthalene-5,8-dioxy nucleus or a compound which is capable of being converted to the 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dione nucleus and requires no metal oxide addition to exert its function.
摘要:
A fire retardant system comprising a compound having within its structure the 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dione or 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dioxy nucleus or a compound which is capable of being converted to the 1,2,3,4,9,9-hexahalo-1,4-dihydro-1,4-methanonaphthalene-5,8-dione nucleus and requires no metal oxide addition to exert is function.
摘要:
Manufacture of benzoquinones by uninterruptedly bringing together and mixing an aniline with chromic/sulphuric acid at a temperature (y) of 0-100*C and operating with a maximum residence time in the reaction zone of x minutes, the relationship between x and y being y2 12500/x therefore + 0.8 PROVIDED THAT IN NO CASE DOES X EXCEED 360.
摘要:
Process for producing substituted benzoquinones through oxidation of para-substituted phenols by manganese dioxide in a mixture of aqueous sulfuric acid and a cosolvent. A typical parasubstituted phenol reactant is 2,6-di-tert-butyl-p-cresol, and its oxidation product is 2,6-di-tert-butyl-p-benzoquinone.
摘要:
THIS INVENTION DESCRIBES NEW SUBSTITUTED INDOLE COMPOUNDS. INTERMEDIATE 3-HALODICARBONYL INDOLES ARE ALSO DESCRIBED. THE PREPARATION OF THE FINAL PRODUCTS FROM THE 3-HALODICARBONYL INDOLES WHEREIN THE 3-POSITION CONTAINS A DISUBSTITUTED B-AMINOETHYL GROUP IS DESCRIBED. THE COMPOUNDS HAVE UTILITY AS CENTRAL NERVOUS SYSTEM DEPRESSANTS, ANALGESICS, ANTI-INFLAMMATORY AGENTS, AND DIURETIC AGENTS.