Pesticidal compositions and processes related thereto

摘要

This document discloses molecules having the following formulas (“Formula One” & “Formula Two” and “Formula Three”);;The Ar1, Het, Ar2, R1, R2, R3, R4, and R5 are further described herein.

主权项

1. A process to control a pest, said process comprising applying to an area, in an amount sufficient to control such pest, a composition comprising a carrier and a molecule according to Formulas One or Two wherein: (a) Ar1 is
(1) furanyl, phenyl, pyridazinyl, pyridyl, pyrimidinyl, thienyl, or(2) substituted furanyl, substituted phenyl, substituted pyridazinyl, substituted pyridyl, substituted pyrimidinyl, or substituted thienyl,
wherein said substituted furanyl, substituted phenyl, substituted pyridazinyl, substituted pyridyl, substituted pyrimidinyl, and substituted thienyl, have one or more substituents independently selected from H, F, Cl, Br, I, CN, NO2, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, phenoxy, substituted phenyl, and substituted phenoxy, wherein such substituted phenyl and substituted phenoxy have one or more substituents independently selected from H, F, Cl, Br, I, CN, NO2, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl)phenyl, and phenoxy; (b) Het is a 1,2,4-triazolyl (c) Ar2 is
(1) furanyl, phenyl, pyridazinyl, pyridyl, pyrimidinyl, thienyl, or(2) substituted furanyl, substituted phenyl, substituted pyridazinyl, substituted pyridyl, substituted pyrimidinyl, or substituted thienyl,
wherein said substituted furanyl, substituted phenyl, substituted pyridazinyl, substituted pyridyl, substituted pyrimidinyl, and substituted thienyl, have one or more substituents independently selected from H, F, Cl, Br, I, CN, NO2, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, phenoxy, substituted phenyl and substituted phenoxy, wherein such substituted phenyl and substituted phenoxy have one or more substituents independently selected from H, F, Cl, Br, I, CN, NO2, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)H, C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C1-C6 haloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, and phenoxy; (d) R1 is selected from H, CN, F, Cl, Br, I, C1-C6 alkyl, C3-C6 cycloalkyl, C3-C6 cycloalkoxy, C1-C6 alkoxy, C2-C6 alkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), OSO2(C1-C6 alkyl), C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, or phenoxy, wherein each alkyl, cycloalkyl, cycloalkoxy, alkoxy, alkenyl, alkynyl, phenyl, and phenoxy, are optionally substituted with one or more substituents independently selected from F, Cl, Br, I, CN, NO2, oxo, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, and phenoxy; (e) R2 is H, C1-C6 alkyl, C3-C6 cycloalkyl, C2-C6 alkenyl, C2-C6 alkynyl, C(═O)H, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, C1-C6 alkylphenyl, C1-C6 alkyl-O-phenyl, C(═O)Het-1, Het-1, C1-C6 alkylHet-1, or C1-C6 alkyl-O-Het-1, wherein each alkyl, cycloalkyl, alkenyl, alkynyl, phenyl, and Het-1 are optionally substituted with one or more substituents independently selected from F, Cl, Br, I, CN, NO2, NRxRy, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C3-C6 cycloalkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)H, C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, phenoxy, and Het-1; (f) R3 is C1-C6 alkyl, C3-C6 cycloalkyl, C2-C6 alkenyl, C2-C6 alkynyl, C(═O)H, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, C1-C6 alkylphenyl, C1-C6 alkyl-O-phenyl, C(═O)Het-1, Het-1, C1-C6 alkylHet-1, C1-C6 alkyl-O—C(═O)C1-C6 alkyl-O—C1-C6 alkyl, C1-C6 alkyl-O—C(═O)C1-C6 alkyl-O—C1-C6 alkyl-O—C1-C6 alkyl, C1-C6 alkyl-O—C(═O)C1-C6 alkyl-O—C1-C6 haloalkyl, C1-C6 alkyl-O—C(═O)C1-C6 alkyl-N(Rx)C(═O)—O-phenyl, C1-C6 alkyl-O—C(═O)C1-C6 alkyl-N(Rx)C(═O)—O—C1-C6 alkylphenyl, C1-C6 alkylC(═O)N(Rx)C1-C6 alkyl, C1-C6 alkylC(═O)N(Rx)C1-C6 alkylHet-1C(═O)—O—C1-C6 alkyl, C1-C6 alkylC(═O)N(Rx)C1-C6 alkylHet-1, C1-C6 alkylC(═O)Het-1, C1-C6 alkylC(═O)N(Rx)C1-C6 alkyl(N(Rx)(Ry))(C(═O)OH), C1-C6 alkylC(═O)N(Rx)C1-C6 alkylN(Rx)(Rx, C1-C6 alkylC(═O)N(Rx(C1-C6 alkylN(RxC(═O)—O—C1-C6 alkyl, C1-C6 alkylC(═O)N(Rx)C1-C6 alkyl(N(Rx)C(═O)—O—C1-C6 alkyl)(C(═O)OH), C1-C6 alkylC(═O)Het-1C(═O)—O—C1-C6 alkyl, C1-C6 alkyl-O—C(═O)—O—C1-C6 alkyl, C1-C6 alkyl-O—C(═O)C1-C6 alkyl, C1-C6 alkyl-O—C(═O)C3-C6 cycloalkyl, C1-C6 alkyl-O—C(═O)Het-1, C1-C6 alkyl-O—C(═O)C1-C6 alkyl-N(Rx)C(═O)—O—C1-C6 alkyl, C1-C6 alkyl-NRxRy, or C1-C6 alkyl-O-Het-1, wherein each alkyl, cycloalkyl, alkenyl, alkynyl, phenyl, and Het-1 are optionally substituted with one or more substituents independently selected from F, Cl, Br, I, CN, NO2, NRxRy, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C3-C6 cycloalkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)H, C(═O)OH, C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, phenoxy, Si(C1-C6 alkyl)3, S(═O)nNRxRy, and Het-1; (g) R4 is H, C1-C6 alkyl, C3-C6 cycloalkyl, C2-C6 alkenyl, C2-C6 alkynyl, C(═O)H, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, C1-C6 alkylphenyl, C1-C6 alkyl-O-phenyl, C(═O)Het-1, Het-1, C1-C6 alkylHet-1, or C1-C6 alkyl-O-Het-1, wherein each alkyl, cycloalkyl, alkenyl, alkynyl, phenyl, and Het-1 are optionally substituted with one or more substituents independently selected from F, Cl, Br, I, CN, NO2, NRxRy, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C3-C6 cycloalkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)H, C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, phenoxy, and Het-1; (h) R5 is a 2 to 4 membered saturated or unsaturated hydrocarbyl linkage where said linkage may also be substituted with F, Cl, Br, I, CN, NO2, oxo, NRxRy, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C3-C6 cycloalkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)H, C(═O)OH, C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, phenoxy, and Het-1, wherein each alkyl, cycloalkyl, cycloalkoxy, alkoxy, alkenyl, alkynyl, phenyl, phenoxy, and Het-1, are optionally substituted with one or more substituents independently selected from F, Cl, Br, I, CN, NO2, oxo, NRxRy, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C3-C6 cycloalkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)H, C(═O)OH, C(═O)NRxRy, (C1-C6 alkyl)NRxRy, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, halophenyl, phenoxy, and Het-1; (i) n=0, 1, or 2; and (j) Rx and Ry are independently selected from H, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C2-C6 alkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)H, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), and phenyl, wherein each alkyl, cycloalkyl, cycloalkoxy, alkoxy, alkenyl, alkynyl, phenyl, phenoxy, and Het-1, are optionally substituted with one or more substituents independently selected from F, Cl, Br, I, CN, NO2, oxo, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C3-C6 cycloalkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)H, C(═O)OH, C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, halophenyl, phenoxy, and Het-1, or Rx and Ry together can optionally form a 5- to 7-membered saturated or unsaturated cyclic group which may contain one or more heteroatoms selected from nitrogen, sulfur, and oxygen, and where said cyclic group can contain >C═O or >C═S, and where said cyclic group may be substituted with F, Cl, Br, I, CN, C1-C6 alkyl, C1-C6 haloalkyl, C3-C6 cycloalkyl, C3-C6 halocycloalkyl, C3-C6 cycloalkoxy, C3-C6 halocycloalkoxy, C1-C6 alkoxy, C1-C6 haloalkoxy, C2-C6 alkenyl, C3-C6 cycloalkenyl, C2-C6 alkynyl, S(═O)n(C1-C6 alkyl), S(═O)n(C1-C6 haloalkyl), OSO2(C1-C6 alkyl), OSO2(C1-C6 haloalkyl), C(═O)(C1-C6 alkyl), C(═O)O(C1-C6 alkyl), C(═O)(C1-C6 haloalkyl), C(═O)O(C1-C6 haloalkyl), C(═O)(C3-C6 cycloalkyl), C(═O)O(C3-C6 cycloalkyl), C(═O)(C2-C6 alkenyl), C(═O)O(C2-C6 alkenyl), (C1-C6 alkyl)O(C1-C6 alkyl), (C1-C6 alkyl)S(C1-C6 alkyl), C(═O)(C1-C6 alkyl)C(═O)O(C1-C6 alkyl), phenyl, substituted phenyl, phenoxy, and Het-1; and (k) Het-1 is a 5- or 6-membered, saturated or unsaturated, heterocyclic ring, containing one or more heteroatoms independently selected from nitrogen, sulfur or oxygen.