摘要:
A method is disclosed for preparing chiral nicotine and nicotine analogues of the formula: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are hydrogen or alkyl and R.sub.4 is alkyl. Also disclosed are novel intermediate compounds and a novel method for preparing 1-methylprolinol from prolinol, which compounds and method are useful for the preparation of these nicotinoids.
摘要:
Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is C.sub.1 -C.sub.6 alkyl; R.sub.3 is hydrogen, halogen or methyl; and R.sub.4 is hydrogen, methyl or phenyl; or R.sub.3 and R.sub.4 taken together form a tetramethylene chain; provided that R.sub.3 and R.sub.4 are not both hydrogen, are insecticides and/or nematicides.
摘要:
Compounds and compositions containing them, for insecticidal control, particularly for use as soil and/or foliar insecticides, have the formula ##STR1## in which R.sub.1 is methyl or ethyl;R.sub.2 is C.sub.1 -C.sub.6 alkyl; andR.sub.3 is C.sub.3 -C.sub.6 cycloakyl.
摘要:
Compounds and compositions containing them, for insecticidal control, particularly for use as soil and/or foliar insecticides, have the formula ##STR1## in which R.sub.1 is methyl or ethyl;R.sub.2 is secondary butyl or tertiary butyl;R.sub.3 is hydrogen or methyl;R.sub.4 is hydrogen, methyl or fluoro; andR.sub.5 and R.sub.6 are either both hydrogen or both fluoro.
摘要:
Compounds and compositions containing them, for insecticidal control having the formula ##STR1## in which R.sub.1 is an alkyl group having from 1 to 3 carbon atoms, R.sub.2 is an alkyl group having from 1 to 6 carbon atoms, and R.sub.3 and R.sub.4 are independently alkyl groups having from 1 to 6 carbon atoms, or R.sub.3 and R.sub.4 taken together form a ring having the formula ##STR2## in which m and n are each integers from 1 to 3 and X is oxygen or --CH.sub.2 --, together with insecticidal compositions containing such compounds, and methods for controlling insects.
摘要:
Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is C.sub.1 -C.sub.6 alkyl; R.sub.3 is hydrogen or methyl; and R.sub.4 is C.sub.1 -C.sub.4 alkyl; R.sub.3 and R.sub.5 taken together form a trimethylene chain, are insecticides.
摘要:
Compounds and compositions containing them, for insecticidal control having the formula ##STR1## in which R.sub.1 is an alkyl group having from 1 to 3 carbon atoms, R.sub.2 is an alkyl group having from 1 to 6 carbon atoms, and R.sub.3 and R.sub.4 are independently alkyl groups having from 1 to 6 carbon atoms, or R.sub.3 and R.sub.4 taken together form a ring having the formula ##STR2## in which m and n are each integers from 1 to 3 and X is oxygen or --CH.sub.2 --, together with insecticidal compositions containing such compounds, and methods for controlling insects.
摘要:
Compounds for insecticidal control, having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is a straight or branched chain alkyl group having from 3 to 5 carbon atoms; R.sub.3 is hydrogen, methyl or carbomethoxy; and R.sub.4 is an alkyl group having from 1 to 4 carbon atoms, together with insecticidal compositions containing such compounds, and methods for controlling insects.
摘要:
Compounds and compositions containing alkylphosphonothioates, for insecticidal control, particularly for use as soil and/or foliar insecticides, having the formula. ##STR1## in which R is C.sub.1 -C.sub.3 alkyl;R.sub.1 is C.sub.4 -C.sub.6 branched alkyl;R.sub.2 is hydrogen, methyl, ethyl, cyano or C.sub.2 -C.sub.4 alkynyl; ##STR2## R.sub.4 is halo, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 thioalkyl or mono-or di-C.sub.1 -C.sub.2 alkylamino;n is 1-3; andX is O or S.
摘要:
Compounds having the formula ##STR1## in which R.sub.1 is methyl or ethyl; R.sub.2 is C.sub.1 -C.sub.6 alkyl; R.sub.3 is halogen, C.sub.1 -C.sub.4 alkyl, trifluoromethyl, thio-(C.sub.1 -C.sub.4 alkyl) or phenoxy, and n is 0, 1 or 2; provided that if R.sub.2 is methyl, then R.sub.1 is methyl, are insecticides.