Abstract: Pollen suppressants of the formula ##STR1## wherein X represents a group of the formula OR.sup.1 or NR.sup.1 R.sup.2 wherein R.sup.1 represents a C.sub.1 -C.sub.4 alkyl (optionally substituted with a C.sub.1 -C.sub.4 alkoxy group, 1 to 3 halogen atoms, or a carboxy or C.sub.1 -C.sub.4 alkylcarbonyl group), alkenyl (optionally substituted with 1 to 3 halogen atoms), or alkynyl group and R.sup.2 represents H or CH.sub.3, with the proviso that when R.sup.1 is CH.sub.3 , R.sup.2 is CH.sub.3 ; Y is hydrogen, C.sub.1 -C.sub.22 linear alkyl or alkenyl containing up to four C.dbd.C double bonds C.sub.3 -C.sub.6 branched alkyl or alkenyl, C.sub.2 -C.sub.4 alkoxyalkyl, cyclohexylmethyl, halogenated C.sub.1 -C.sub.4 alkyl, phenyl, benzyl, --(CH.sub.2 CH.sub.2 O).sub.m CH.sub.2 CH.sub.3 in which m is an integer from 1 to 5, or --CH(CH.sub.2 OR.sup.4)CH.sub.2 OR.sup.5 or --CH.sub.2 CHOR.sup.4 CH.sub.2 OR.sup.5 in which either R.sup. 4 or R.sup.5 but not both represent a C.sub.1 -C.sub.

Abstract: A method for the preparation of compounds of the formula ##STR1## wherein X represents a group of the formula OR.sub.1 or NR.sub.1 R.sub.2, wherein R.sub.1 and R.sub.2 independently represent H or an organic group that forms a stable covalent bond with the N or 0 of said X; Y is H or an organic group that forms a stable ester with the adjacent COO group; R is an alkyl or aryl group optionally substituted with one or more stable organic substituents; each R.sub.3 independently represents a stable organic group; and n is an integer from 0 to 3;the method using new intermediates of the formula ##STR2## wherein R.sub.3 and Y have the foregoing meanings;W is either F or Cl; andR.sub.9 is a hydrocarbon such as a C.sub.1 -C.sub.4 alkyl or alkenyl group.

Abstract: A method for the preparation of compounds of the formula ##STR1## wherein X represents a group of the formula OR.sub.1 or NR.sub.1 R.sub.2, wherein R.sub.1 and R.sub.2 independently represent H or an organic group that forms a stable covalent bond with the N or O of said X; Y is H or an organic group that forms a stable ester with the adjacent COO group; R is an alkyl or aryl group optionally substituted with one or more stable organic substituents; each R.sub.3 independently represents a stable organic group; and n is an integer from 0 to 3;the method using new intermediates of the formula ##STR2## wherein R.sub.3 and Y have the foregoing meanings; W is either F or Cl;and R.sub.9 is a hydrocarbon such as a C.sub.1 -C.sub.4 alkyl or alkenyl group.

Abstract: Pollen suppressants of the formula ##STR1## wherein X represents a group of the formula OR.sup.1 or NR.sup.1 R.sup.2 wherein R.sup.1 represents a C.sub.1 -C.sub.4 alkyl (optionally substituted with a C.sub.1 -C.sub.4 alkoxy group, 1 to 3 halogen atoms, or a carboxy or C.sub.1 -C.sub.4 alkylcarbonyl group), alkenyl (optionally substituted with 1 to 3 halogen atoms), or alkynyl group and R.sup.2 represents H or CH.sub.3, with the proviso that when R.sup.1 is CH.sub.3, R.sup.2 is CH.sub.3 ; Y is hydrogen, C.sub.1 -C.sub.22 linear alkyl or alkenyl containing up to four C.dbd.C double bonds, C.sub.3 -C.sub.6 branched alkyl or alkenyl, C.sub.2 -C.sub.4 alkoxyalkyl, cyclohexylmethyl, halogenated C.sub.1 -C.sub.4 alkyl, phenyl, benzyl, --(CH.sub.2 CH.sub.2 O).sub.m CH.sub.2 CH.sub.3 in which m is an integer from 1 to 5, or --CH(CH.sub.2 OR.sup.4)CH.sub.2 OR.sup.5 or --CH.sub.2 CHOR.sup.4 CH.sub.2 OR.sup.5 in which either R.sup.4 or R.sup.5 but not both represent a C.sub.1 -C.sub.

Abstract: Pollen suppressants of the formula ##STR1## wherein Z represents a divalent organic radical of the formula --CH.dbd.CH--CH.dbd.CH--, --CH.dbd.CH--CH.dbd.N--, --CH.dbd.CH--N.dbd.CH--, --CH.dbd.CH--NH--, --CH.dbd.CH--O--, or --CH.dbd.CH--S-- or said radical in which an H of Z is replaced with a halogen atom with the proviso that no more than three H of Z are replaced by fluorine; a C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkanoyl, cyano, nitro, hydroxy, or trihalomethyl group; or a group of the formula --NR.sup.1 R.sup.2 wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; Y is Y.sup.1 R.sup.3 or NR.sup.4 R.sup.5 wherein Y.sup.1 is oxygen or sulfur; R.sup.3 hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxyalkyl, cyclohexylmethyl, halogenated C.sub.1 -C.sub.4 alkyl, phenyl, or benzyl; and R.sup.4 and R.sup.5 are independently selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl, or C.sub.1 -C.sub.

Abstract: Pollen suppressants of the formula ##STR1## wherein Z represents a divalent organic radical of the formula --CH.dbd.CH--CH.dbd.CH--, --CH.dbd.CH--CH.dbd.N--, --CH.dbd.CH--N.dbd.CH--, --CH.dbd.CH--NH--, --CH.dbd.CH--O, or --CH.dbd.CH--S-- or said radical in which an H of Z is replaced with a halogen atom with the proviso that no more than three H of Z are replaced by fluorine; a C.sub.1 -C.sub.4 alkyl, C.sub.1 C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkanoyl, cyano, nitro, hydroxy, or trihalomethyl group; or a group of the formula --NR.sup.1 R.sup.2 wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; Y is Y.sup.1 R.sup.3 or NR.sup.4 R.sup.5 wherein Y.sup.1 is oxygen or sulfur; R.sup.3 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl, C.sub.1 -C.sub.4 alkoxyalkyl, cyclohexylmethyl, halogenated C.sub.1 -C.sub.4 alkyl, phenyl, or benzyl; and R.sup.4 and R.sup.5 are independently selected from the group consisting of hydrogen, C.

Abstract: Pollen suppressants of the formula ##STR1## wherein Z represents a divalent organic radical of the formula --CH.dbd.CH--CH.dbd.CH--, --CH.dbd.CH--CH.dbd.N--, --CH.dbd.CH--N.dbd.CH--, --CH.dbd.CH--NH--, --CH.dbd.CH--O--, or --CH.dbd.CH--S-- or said radical in which an H of Z is replaced with a halogen atom with the proviso that no more than three H or Z are replaced by fluorine; a C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkanoyl, cyano, nitro, hydroxy, or trihalomethyl group; or a group of the formula --NR.sup.1 R.sup.2 wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; Y is Y.sup.1 R.sup.3 or NR.sup.4 R.sup.5 wherein Y.sup.1 is oxygen or sulfur; R.sup.3 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxyalkyl, cyclohexylmethyl, halogenated C.sub.1 -C.sub.4 alkyl, phenyl, or benzyl; and R.sup.4 and R.sup.5 are independently selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl, or C.sub.1 -C.sub.

Abstract: A pollen suppressant of the formula ##STR1## wherein R.sup.1 and R.sup.4 independently represent C.sub.1 -C.sub.4 alkyl, phenyl, naphthyl, or phenyl or naphthyl substituted with one to three substituents selected from the group consisting of halogen, trihalomethyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl, and cyano; R.sup.2 is ##STR2## where R.sup.5 is a C.sub.1 -C.sub.12 alkyl group, optionally substituted with one or more halogen atoms, or an aryl group selected from the group consisting of 6-membered rings containing 0-3 nitrogens and fused bicyclic 10-membered rings containing 6 atoms in each ring and 0-3 nitrogens per ring with the remaining atoms in the ring or rings of said aryl group being carbon atoms, said aryl group being optionally substituted with a C.sub.1 -C.sub.4 alkyl group or an electron-withdrawing group, R.sup.3 is hydrogen, a halogen a C.sub.1 -C.sub.4 alkyl group, a carboxy group or an agronomically acceptable alkali metal salt thereof, or a group of the formula --COOR.sup.