Abstract: This invention relates to novel phosphonic acid esters represented by the following general formula (I) ##STR1## wherein R.sup.1 represents a lower alkyl group or an aryl group,R.sup.2 represents a lower alkyl group or a lower alkoxy-lower alkyl group,R.sup.3 represents a fluoro-substituted lower alkyl group,X represents an oxygen or sulfur atom,Y represents an oxygen or sulfur atom or a group of the formula ##STR2## in which R.sup.4 represents a hydrogen atom or a lower alkyl group, Z represents a hydrogen atom, a halogen atom or a lower alkyl group, andn represents 0 or 2,which can be used as insecticidal, miticidal and nematocidal agents.

Abstract: The invention relates to new 4-aryl-2-methyl-1,2,3,4-tetrahydro-isoquinoline derivatives of the general Formula I ##STR1## and salts thereof whereinR stands for hydrogen, lower alkyl or halogen andX represents a group of the general Formula --(CH.sub.2).sub.n --NR.sup.1 R.sup.2, --NH--R.sup.3 or --OR.sup.4, in whichR.sup.1 and R.sup.2 may be the same or different and stand for hydrogen or lower alkyl or R.sup.1 and R.sup.2 together with the adjacent nitrogen atom, they are attached to, form a 5- or 6-membered saturated heterocyclic ring which may optionally contain a further oxygen or sulfur atom or an optionally lower alkyl substituted imino group;n is an integral number 1, 2, 3 or 4;R.sup.3 stands for lower alkyl or optionally substituted phenyl andR.sup.4 is lower alkyl, halogeno lower alkyl, or phenyl lower alkyl.The compounds of the general Formula I are useful as antidepressants and antiparkinsone agents.The compounds of the general Formula I can be prepared by methods known per se.

Abstract: Organophosphate derivatives of the formula ##STR1## in which X is O, S or NH,Y is O or S,R.sup.1 is a lower alkyl group,R.sup.2 is a lower alkyl group or a lower alkoxy-lower alkyl group,R.sup.3 is a fluoro-substituted lower alkyl group, andn is 0 or 2.which possess pesticidal properties. The phenols of the phenyl esters are also new.

Abstract: A fungicidal composition which comprises as an active ingredient a fungicidally effective amount of a phosphoramidothionate of the formula: ##STR1## wherein R.sub.1 is a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a lower cycloalkyl group, a lower cycloalkyl(lower)alkyl group, a halogen atom-substituted lower alkyl group, a lower alkoxy(lower)alkyl group, a di(lower)alkoxy(lower)alkyl group, a cyano group-substituted lower alkyl group, a lower alkylthio(lower)alkyl group, a lower dioxothiacycloalkyl group, a lower thiacycloalkyl group, a lower oxacycloalkyl group, a furanyl(lower)alkyl group or a thiophenyl(lower)alkyl group, R.sub.2 is a lower alkyl group and R.sub.3 is a lower alkyl group or a lower alkoxy group, and an inert carrier or diluent.