摘要:
3,9-Dihydroxynonyne and its derivatives protected at the 9-OH function, of the general formula I ##STR1## where R is hydrogen or a conventional alcohol protective group, and processes for the preparation of the compounds I.
摘要:
Substituted pyridine-N-oxides of the formula ##STR1## where R.sup.1 is alkyl and R.sup.2 is phenyl or substituted phenyl, salts thereof which are physiologically tolerated by plants, and fungicides containing them.
摘要:
R.sup.2 and R.sup.3 are hydrogen or alkyl,R.sup.4 is hydrogen, alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, unsubstituted or substituted aralkyl, COR.sup.5, CO.sub.2 R.sup.6 or CONR.sup.7 R.sup.8,R.sup.5 and R.sup.6 are alkyl, unsubstituted or substituted aryl or unsubstituted or substituted aralkyl,R.sup.7 and R.sup.8 are hydrogen, alkyl, unsubstituted or substituted aryl or unsubstituted or substituted aralkyl andn is 0, 1, 2 or 3,and its plant-tolerated acid addition salts, excluding the compounds where, simultaneously, R.sup.4 is hydrogen, acetyl or propionyl, n is 0 or 1 and R.sup.1, R.sup.2 and R.sup.3 are hydrogen, and fungicides containing the novel piperidines and salts.
摘要:
.alpha.-Neopentyl-phenethyltriazoles of the formula I ##STR1## where R.sup.1, m and A have the meanings given in the description, processes for their preparation, and their use for controlling fungi.
摘要:
The present invention provides antineoplastic peptides of formula I, R1R2N—CHX—CO—A—B-D-E-(G)s-K wherein R1, R2, X, A, B, D, E, G, K and s have the meanings stated in the description. The compounds have antineoplastic activity.
摘要:
The present invention provides antineoplastic peptides of formula I, R1R2N—CHX—CO-A-B-D-E-(G)s-K I wherein R1, R2, X, A, B, D, E, G, K, and s have the meanings stated in the description. The compounds have antineoplastic activity.
摘要:
A process for preparing alkenols of the formula IR.sup.1 --CH.dbd.CH(CH.sub.2).sub.n OH Iwhere R.sup.1 is hydrogen or a hydrocarbon radical, and n is an integer from 3 to 15,a) by reacting a phosphonium salt of the formula IIaR.sup.1 --CH.sub.2 --P.sup.+ (C.sub.6 H.sub.5).sub.3 X.sup.-IIa where X is chlorine, bromine or iodine, with an aldehyde of the formula IIIa or its hemiacetal of the formula IIIb ##STR1## or b) by reacting a phosphonium salt of the formula IIb(C.sub.6 H.sub.5).sub.3 P.sup.+ (CH.sub.2).sub.n+1 OH X.sup.-IIb with a aldehyde of the formula IVR.sup.1 CHO IV in a solvent in the presence of a base, wherein the base is the alkali metal salt of an alcohol and the solvent is an alcohol.
摘要翻译:制备式I R 1 -CH = CH(CH 2)n OH的链烯醇的方法,其中R 1是氢或烃基,n是3至15的整数,a)通过使式IIa R1- 其中X是氯,溴或碘,与式IIIa的醛或其式IIIb的半缩醛式(IIb)(C 6 H 5)3 P +(CH 2)n + 1OH X-IIb与式IV R 1 CHOIV的醛在溶剂中在碱的存在下反应,其中碱是醇的碱金属盐,溶剂是醇。
摘要:
O-substituted hydroxylammonium salts are prepared by hydrolysis of acetone oxime ethers with acid in the presence of an additive, removing acetone and water by distillation with the aid of the additive.
摘要:
The preparation of .alpha.,.beta.-unsaturated aldehydes and ketones IO.dbd.C(R.sup.1)--CR.sup.2 .dbd.CR.sup.3 R.sup.4 Iis carried out by acid hydrolysis of cyclic .alpha.,.beta.-unsaturated acetals II ##STR1## in the presence of saturated aldehydes.
摘要翻译:在饱和醛存在下,α,β-不饱和醛和酮I I = C(R 1)-CR 2 = CR 3 R 4 I的制备通过环状α,β-不饱和缩醛II II的酸水解进行。
摘要:
1,1-dialkoxy- or 1,1-(.alpha.,.omega.-methylenedioxy)-non-2-yn-9-ol and their OH-protected derivatives of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each C.sub.1 -C.sub.6 -alkyl or together form an alkylene chain of 2 to 5 carbon atoms and X is hydrogen or a protective group which can be eliminated, their preparation and their use as intermediates.