摘要:
Alkylbenzenes of the general formula I ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl, preferably methyl, and R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, preferably methyl, are prepared by catalytic aromatization of the corresponding alkenylcyclohexenes of the general formula II ##STR2## by carrying out the conversion in the gas phase at 150.degree.-400.degree. C. over a catalyst which contains palladium oxide and sulfur and/or selenium or selenium oxide on active carbon.
摘要:
7-Aminoazolo[1,5-a]pyrimidines of the formula ##STR1## where R.sup.1 is alkyl or aralkyl,R.sup.2 and R.sup.3 are each hydrogen or alkyl, andA is nitrogen or CR.sup.4, whereR.sup.4 is hydrogen, alkyl or halogen, and fungicides containing these compounds.
摘要:
3,6-Dimethyl-3-hydroxy-oct-1-ynes and -oct-1-enes and their esters with lower alkanoic acids, of the general formula I ##STR1## where X and Y are H or the two X's and/or the two Y's together are a further bond between the carbon atoms on which they are present, and R is H, --CO--CH.sub.3, --CO--C.sub.2 H.sub.5 or --CO--C.sub.3 H.sub.7, their use as scents, and a process for the preparation of 3,6-dimethyl-3-hydroxy-octane. The novel compounds exhibit interesting, predominantly floral, woody, herbal and fruity notes. The alcohols of the formula I are of particular importance because they serve as intermediates for a novel and particularly advantageous method of obtaining 3,6-dimethyl-3-hydroxy-octane, a compound required in large amounts as a fragrance for soaps and detergents.
摘要翻译:3,6-二甲基-3-羟基 - 辛-1-炔和1-辛烯及其与低级链烷酸的酯,通式I(I)其中X和Y是H或两个 X和/或两个Y一起是它们存在的碳原子之间的另一个键,R是H,-CO-CH 3,-CO-C 2 H 5或-CO-C 3 H 7,它们作为香料的用途,和方法 用于制备3,6-二甲基-3-羟基 - 辛烷。 这些新颖的化合物表现出有趣的,主要是花香,木质,草本和果香味。 式I的醇是特别重要的,因为它们用作获得3,6-二甲基-3-羟基 - 辛烷的新颖且特别有利的方法的中间体,其是大量作为肥皂和洗涤剂的香料所需要的化合物。