摘要:
4-(Amino-(polycarbon-lower-alkyl)-amino)-2-halobenzyl alcohols and lower-alkyl ethers thereof have schistosomacidal activity. The benzyl alcohols are prepared: by reduction of the corresponding benzaldehydes or lower-alkyl benzoates; by microbiological oxidation of the corresponding 4-substitutedamino-2-halotoluenes; or, for the compounds where polycarbonlower-alkyl is ethylene, by reducing the corresponding loweralkyl 4-(aminoacetylamino)-2-halobenzoates or by reducing the corresponding 4-(aminoacetylamino)-2-halobenzyl alcohols. The ethers are prepared by heating the benzyl alcohols with a loweralkanol in the presence of an acid.
摘要:
This invention relates to new isoprenylamine derivatives and acid addition salts thereof, which are useful as medicines for controlling virus infection of vertebrate animals, or the intermediates therefor.
摘要:
Ketones are produced by the reaction of an ester or a thiol ester with a Grignard reagent, optionally in an inert solvent at a temperature of preferably from -78* to +60*C.
IN WHICH M AND N ARE EACH SEPARATELY 0 TO 4, INCLUSIVE AND THE SUM OF M AND N IS AT LEAST 1, Q IS FROM 1 TO 4 INCLUSIVE, AND THE BONDS TO EACH OF THE BENZOPHENONE MOIETY AND THE POLYPHENLYLENE MOIETY IS IN THE 3 OR 4 POSITION ARE A NEW CLASS OF COMPOUNDS WHICH ARE USEFUL IS SOLID SOLUTION IN A PLASTIC MATRIX AS PHOTOCHROMIC MATERIALS, IN WHICH THE COLOR CHANGES WHEN SUBJECT TO AN ACTIVATING RADIATION. INSTEAD OF BENZOPHENONES, XANTHONES AND TRIPHENYLENES ARE ALSON DISCLOSED. (PHENYLENE)Q-H
摘要:
Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.3 each is benzyl or substituted with up to 3 methoxy groups, R.sub.2 is a hydrogen atom and (alkylene) is lower alkyl and the compounds are useful for controlling viral infections.
摘要:
Novel quaternary arylaminoalkyl phosphonium salts having the formula [(ArNHCHR).sub.4 P].sup.+X.sup.-, where R is a radical selected from the group consisting of hydrogen, alkyl and aryl, Ar is aryl, and X is halogen, are prepared by the reaction of primary aromatic amines with quaternary hydroxyalkyl phosphonium salts having the formula [(HOCHR).sub.4 P].sup.+X.sup.-, where R and X are similarly defined. The compounds of this invention are useful as flame retardant for cotton, plasticizers, lubricant additives, and surface-active agents.
摘要:
4-(AMINO-(POLYCARBON - LOWER-ALKYL)-AMINO)-2-HALOBENZYL ALCOHOLS AND LOWER-ALKYL ETHERS THEREOF HAVE SCHISTOSMOCIDAL ACTIVITY. THE BENZYL ALCOHOLS ARE PREPARED: BY REDUCTION OF THE CORRESPONDING BENZALDEHYDES OR LOWER-ALKYL BENZOATES; BY MICROBIOLOGICAL OXIDATION OF THE CORRESPONDING 4-SUBSTITUTED-AMINO-2-HALOTOLUENES; OR, FOR THE COMPOUNDS WHERE POLYCARBON-LOWER-ALKYL IS ETHYLENE, BY REDUCING THE CORRESPONDING LOWER-ALKYL 4(AMINOACETYLAMINO)-2-HALOBENZOATES OR BY REDUCING THE CORRESPONDING 4-(AMINOACETYLAMINO) - 2 - HALOBENZYL ALCOHOLS. THE ETHERS ARE PREPARED BY HEATING THE BENZYL ALCOHOLS WITH A LOWER-ALKANOL IN THE PRESENCE OF AN ACID.
摘要:
2,5-DIAMINO-1,4-BENZOQUINONES ARE USED IN THE PRODUCTION OF HAIR DYE COMPOSITIONS AND CAN BE PREPARED BY CONDENSING A CORRESPONDING 3-AMINO-4-METHOXY PHENOL DERIVATIVE ON ONE OF A CORRESPONDING HYDROXY ANILINE OR PHENYLENEDIAMINE DERIVATIVE, A CORRESPONDING BENZOQUINONE IMINE DERIVATIVE OR A CORRESPONDING NITROSO DERIVATIVE.
摘要:
Nitroaromatics are selectively hydrogenated in neutral media in the presence of precious metal catalysts and in the presence of dimethylsulfoxide to produce N-arylhydroxylamines in high yield.