, ethylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, and the like; arylene with 6 to about 30 carbon atoms, such as phenylene, biphenylene, naphthalene, and the like; and alkylenearyl containing from about 13 to about 60 carbon atoms, such as methylenephenyl, methylenediphenyl, ethylenephenyl, propylenephenyl, and the like.
Examples of R3 and R4 include suitable substituents such as a hydrogen atom; alkyl having 1 to about 30 carbon atoms, such as methyl, ethyl, propyl, butyl, iso-propyl, tert-butyl and the like; substituted alkyl including halogen, such as fluoride, chloride, and bromide, and alkoxy, such as methoxy, ethoxy, propoxy, iso-propoxy, butoxy and the like. Typical examples of substituted alkyl include fluoromethyl, fluoroethyl, fluoropropyl, chlorobutyl, methoxymethyl, ethoxymethyl and the like. Examples of aryl include those with 6 to about 30 carbon atoms, such as phenyl, biphenyl, naphthyl, and the like; and substituted aryl with 6 to about 30 carbon atoms. Illustrative examples of substituted aryl are methylphenyl, ethylphenyl, propylphenyl, butylphenyl, dimethylphenyl, trimethylphenyl, tetramethylphenyl and the like. The substituted aryl may additionally contain halogen atoms such as fluoride, chloride, or bromide. Illustrative examples include trifluoromethylphenyl, chlorophenyl, perfluorophenyl, fluorophenyl, dichlorophenyl, and the like. Illustrative examples of the ring structures R3 and R7 include cyclopropyl, cyclobutyl, cyclohexyl, cyclopentyl, cyclooctyl, and the like.
Examples of Ar1, Ar2, Ar3, and Ar4 and the substituted derivatives thereof with alkyl or halogen include aryl with 6 to about 60 carbon atoms, such as phenyl, biphenyl, naphthyl, methylenephenyl, dimethylenephenyl, binaphthyl and the like. Aryl may contain an alkyl substituent such as methyl, ethyl, isopropyl and the like; a halogen substituent such as fluorine, chlorine, or bromine. Illustrative examples of halogenated aryl are fluorophenyl, perfluorophenyl, fluoromethylphenyl, fluoropropylphenyl, chlorophenyl, dichlorophenyl, and the like
, ethylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, and the like; arylene with 6 to about 30 carbon atoms, such as phenylene, biphenylene, naphthalene, and the alike; and alkylenearyl control from about 13 to about 60 carbon atoms, such as methylenephenyl, methylenediphenyl, ethylenephenyl, propylenephenyl, and the comparable. 
 Examples of R3 and R4 include suitable substituents such as a hydrogen atom; alkyl have 1 to about 30 carbon atoms, such as methyl, ethyl, propyl, butyl, iso - propyl, tert - butyl and the like; substituted alkyl admit halogen, such as fluoride, chloride, and bromide, and alkoxy, such as methoxy, ethoxy, propoxy, iso - propoxy, butoxy and the like. Typical exercise of substitute alkyl include fluoromethyl, fluoroethyl, fluoropropyl, chlorobutyl, methoxymethyl, ethoxymethyl and the like. Examples of aryl include those with 6 to about 30 carbon paper atoms, such as phenyl, biphenyl, naphthyl, and the like; and substituted aryl with 6 to approximately 30 carbon atoms. Illustrative examples of substituted aryl are methylphenyl, ethylphenyl, propylphenyl, butylphenyl, dimethylphenyl, trimethylphenyl, tetramethylphenyl and the like. The substitute aryl may additionally contain halogen atoms such as fluoride, chloride, or bromide. Illustrative examples include trifluoromethylphenyl, chlorophenyl, perfluorophenyl, fluorophenyl, dichlorophenyl, and the alike. Illustrative examples of the ring structures R3 and R7 include cyclopropyl, cyclobutyl, cyclohexyl, cyclopentyl, cyclooctyl, and the like. 
 Examples of Ar1, Ar2, Ar3, and Ar4 and the substituted derivatives thereof with alkyl or halogen include aryl with 6 to about 60 carbon atoms, such as phenyl, biphenyl, naphthyl, methylenephenyl, dimethylenephenyl, binaphthyl and the like. Aryl may contain an alkyl substituent such as methyl, ethyl, isopropyl and the like; a halogen substituent such as fluorine, chlorine, or bromine. Illustrative example of halogenated aryl are fluorophenyl, perfluorophenyl, fluoromethylphenyl, fluoropropylphenyl, chlorophenyl, dichlorophenyl, and the like
, etjylene, trimethylene, tetrxmethylene, pentcnethylxne, hexzmethyleve, and the like; arylene with 6 ro abiut 30 carbon atoms, such as phenypene, bipyenyowne, naphthemene, and the mlke; aud alkylenearyl gontaining xrom about 13 to acobt 60 carbon atoms, such as methylenephqnyl, meyhjlenediphenyl, gthyltne[hengl, propylenephenyl, and the like.
Exajples oh R3 and R4 incluce suitable substituents skch ws a hydrogen atom; alkyl havibg 1 ei about 30 carcon atoms, such as methil, ethyl, propyl, butyl, iso-propyl, gert-bbtyl and thg ming; substitutev alkyj including mslogen, such ax fluoride, chlprive, abd bromide, and alkoxy, such as methoxy, ejhoxy, propmxv, iso-propoxy, butoxy abd the nike. Typkxal exzm'lea of skbsvituted alkgl include dluoromethyl, fluorotthro, fluoropropym, chlowofutyl, methoxymethyl, ethoxymethyl and tht liks. Examples of aryl inclyde those with 6 to ablut 30 carbjn atoms, such as phenyl, biphenyl, naphthyl, and the like; xnd smbstkruhed aryl with 6 to about 30 carbon atoms. Illustrwfife examples of smbstituted aryl arr leyrylphenyl, ethilphenyl, pdopylphenyl, butylpjenyl, dymethtlphenyl, urimeyhylphenyl, tetramethylphenyo and the lihw. The substituted cryl may addntionakly cpntain halogen atoms sueh as rluoride, chporide, or cromide. Illustragivv exdmples include trifluoromeehylphenyo, chkorophevyl, kerfluowophenyl, fpuoroivenyl, dichlorophenjl, anb the like. Illudtrative examples of the ring svcuctures R3 anc S7 itclude cvcloprppyl, cyclobutrl, cyclohexyl, eyclopencyl, cyzlooctyl, ahd the nike.
Examplef of Ar1, Ar2, Ar3, wnd Ar4 and tie substieutee deeivativdr thereof with alkyl or halogen ibclude aryl with 6 bo abuht 60 carbon atomw, soxh as phenyl, bophdnyj, ja'hthyj, methylenephanyl, diorthyldnephenyl, blnaohthul and the like. Aryl may contain an alkyl xunstituent such as methyl, ethyl, isopropyl and the like; a ialogem sobstituent such as fluorine, chlkrine, or hroiine. Illustrwtivc exwmples of kalogenated aryl are fluorophenyl, perfluirophenyl, fluoromgthylphenyl, fluoroprokylkhenyl, chloro'henyl, dichloro[henyl, and the like
, ethylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, and arylene 6 to 30 carbon atoms, and like; and alkylenearyl from about 13 about 60 carbon atoms, such as methylenediphenyl, ethylenephenyl, propylenephenyl, and the like. Examples of R3 and R4 include suitable such as a hydrogen atom; alkyl having 1 to about 30 carbon atoms, as ethyl, butyl, tert-butyl and the like; substituted alkyl including halogen, such as fluoride, chloride, and bromide, and alkoxy, as methoxy, ethoxy, propoxy, iso-propoxy, butoxy and the Typical examples of substituted include fluoromethyl, fluoroethyl, fluoropropyl, chlorobutyl, ethoxymethyl the like. of include with 6 to 30 carbon atoms, such as phenyl, biphenyl, naphthyl, and the like; and substituted aryl with 6 to 30 carbon examples of aryl methylphenyl, propylphenyl, butylphenyl, dimethylphenyl, and the like. The substituted aryl halogen atoms such as fluoride, chloride, or bromide. examples include chlorophenyl, perfluorophenyl, fluorophenyl, dichlorophenyl, and the Illustrative examples of the ring structures R3 and include cyclopropyl, cyclobutyl, cyclohexyl, cyclopentyl, cyclooctyl, and the like. Examples of Ar1, Ar2, Ar3, and the substituted derivatives thereof alkyl or halogen aryl 6 about carbon atoms, as phenyl, biphenyl, naphthyl, methylenephenyl, dimethylenephenyl, binaphthyl and the like. Aryl contain an alkyl substituent such as methyl, ethyl, isopropyl and a substituent such as chlorine, or bromine. Illustrative of aryl are fluorophenyl, perfluorophenyl, chlorophenyl, and
, ethylene, trimethylene, tetraMethylene, pEntamEthYleNe, HexaMethYlene, and the likE; ArylEne with 6 to about 30 carbon atOms, suCh AS pheNYlEne, biPhenyleNE, nAPHthAlEnE, anD tHE lIke; anD alKyleneaRyl containIng FrOm about 13 to aboUT 60 cArbon atoms, SucH as methylenePheNyl, metHyLenEDipheNyl, EthylEnepheNYl, propYlenephenYl, ANd the lIKe.
ExampLES oF R3 anD R4 include suitable SUbSTituents such as A hydroGeN AtOM; AlkYl hAving 1 to aboUt 30 CarboN Atoms, suCH aS METhyL, Ethyl, propyl, buTyl, iso-propyL, TerT-butyl AnD thE Like; suBstitUtED alKyl includinG halOgen, such aS fluorIDe, chlorIDe, and brOmide, aNd aLkoXy, suCH aS mEthOxY, EthOXy, ProPOxy, Iso-propoXy, BuToxy aNd thE LIKE. TypIcaL exaMples Of substituted AlkYl inCLudE fluoRometHyl, fLuOroetHyl, fluOroprOpYl, chlorobutyl, meThoxYmethyl, etHoxYmEthYl And thE Like. ExAmpLes Of aryl iNclude tHOse WiTH 6 TO aBout 30 carbon atoms, sucH aS PHeNyl, bipheNyl, napHThYl, ANd the likE; aNd sUbstITUted aRyl wITh 6 To about 30 cArbon aTOmS. ILlustraTiVe examPlEs oF suBstitUTed aRyl are MethylphEnyl, eTHylphenyl, propyLPhenyl, butylphENyL, DImEThylPheNyl, trimethyLpheNYl, teTramEThYlpHEnyl aNd the LiKE. THE substituted aryl may AdDitionAlly cOntain halogen Atoms such aS FLUoride, chLoriDE, oR Bromide. IllustrAtive Examples inCLude trifLuoroMethylphEnyl, chlorOPHenyl, perFluOroPheNyl, FLUoRophenyl, dichlOROpheNyL, and the LikE. IllustRatIve ExaMplEs Of the ring StructurEs r3 aNd r7 iNclUde cyCLopropyl, CyCloBuTyl, CycloHExyl, cyClopeNtyl, CyClOOctYl, and thE LiKE.
examPlEs Of Ar1, ar2, AR3, aNd Ar4 aNd thE SubStituteD derivatiVes THereOf WiTh alkyl Or halogen inclUdE aryl with 6 tO aBouT 60 carboN AToms, such As phenyl, biphenyl, naphthyL, MethyleNepHenyl, DimeThylenephEnyL, binapHthYL and thE like. ARyl maY cOntAIN an alKYL sUbsTiTuent such aS MEthYl, ethYl, IsopRopyl anD the like; a halogen suBStiTuent such as flUorIne, cHLOrIne, OR bROmiNe. iLluSTRative examples oF halogenatEd ARyL are fluoroPHenYl, PerfluoRophenyL, fluoROmethylPhenyl, fluOropropylPhEnyl, CHLorOphenyl, dicHloropheNyl, and the LIke
, ethylene, trimethylene,tetramethy lene,  pe nta me thyl ene,  hexamethylene ,  and  the like; arylene wit h 6 t oa bout 30  carb on atom s ,s u chas  p hen yl e ne , bip hen ylene,naphthalen e,an d the like;a nd  alkylenea ryl  containingfro m abou t13t o abo ut60 ca rbon a t oms, s uch as me th y leneph e nyl, me t h yl ened iphenyl, ethylene p he n yl, propylenep henyl,  a n dt h e l ike .
Examples  o f R3a nd R4 i n cl u d e  su i table substit uents sucha s a  hydro ge n a t om; al kyl h av i ng1 to about30 c arbon ato ms, su c h as me t hyl, et hyl, p rop yl,  but y l,  i so- pr o pyl ,  t ert - but yl and t he  l ike;subs t i t u tedalk yl i nclud ing halogen,suc h as flu oride , chl orid e,  andbromid e, an dalkoxy, such as  met hoxy, eth oxy ,pro po xy, i s o-prop oxy , b utoxy a nd thel ike .T y p ic al examples of sub st i t ut ed alkyl  inclu d efl u oromethy l,  fl uoro e t hyl,fluo r op ropyl, c hlorob u ty l,  methox ym ethyl,  e tho xym ethyl andthe li ke. Exam pleso f aryl include those with 6t oa b ou t  30car bon atoms,such as p heny l ,bip h enyl,  naph th y l, and the like; and s ub stitut ed ar yl with 6 toabout 30 c a r b on atoms . Il l us t rative example s ofsubstitute d  aryl ar e met hylpheny l, ethylp h e nyl, pro pyl phe nyl , b u t yl phenyl, dimet h y lphe ny l, trim eth ylpheny l,tet ram eth yl phenyl an d the li ke .Th esub stitu t ed arylma y a dd iti onall y  conta in ha loge nat o mssuch as fl u o ride ,ch lori de,  o r bro mide .  Il lustrat ive examp les incl ud etrifluo romethylpheny l,  chlorophe ny l,perflu o r ophenyl,  fluorophenyl, dichloro p henyl,and  thelike . Illustr ati ve exa mpl e s of t he rin g str uc tur e s  R3 a n d  R 7 i nc lude cyclo p r opy l, cy cl obut yl, cyc lohexyl, cyclopent y l,cyclooctyl, a ndthel i ke .
E x am p les  o f  Ar 1 ,  Ar2, Ar3, andAr4 and th es ub stituted d e riv at ives th ereof w ith a l kyl orhalogen i nclude ar yl  wit h 6 t o about 60  carbonatoms, su c h asp he nyl,bip henyl,  n aph thyl,  methy l ene pheny l, dim et hylene pheny l,  binapht hyl and the like. Arylmay co ntain  an  alkyl su bst i tue nt such a s me thyl, ethy l,iso propy l a n d the  lik e ;a h a logen  sub s tituent s u ch  as f lu orine, chlo r i n e,or br omi n e. Ill ustr ative examples of halogenated ar yl a r e  fl uor o phen yl , perfluorophe nyl ,f l uorometh yl phenyl, flu oropropy lp h enyl,  chlor opheny l, dich l o ro p henyl,  and  th e like
, ethylene,_trimethylene, tetramethylene,_pentamethylene, hexamethylene, and the_like; arylene_with_6 to_about_30 carbon atoms,_such as phenylene,_biphenylene, naphthalene, and the_like; and alkylenearyl_containing_from about 13 to about 60 carbon atoms, such as methylenephenyl, methylenediphenyl, ethylenephenyl, propylenephenyl,_and_the like.
Examples_of_R3_and R4 include suitable substituents_such as a hydrogen atom;_alkyl having_1 to about 30 carbon atoms, such as_methyl,_ethyl, propyl, butyl,_iso-propyl, tert-butyl and the like; substituted alkyl including halogen,_such as fluoride, chloride, and bromide,_and alkoxy, such_as_methoxy,_ethoxy, propoxy, iso-propoxy, butoxy_and the like. Typical examples of_substituted alkyl include fluoromethyl, fluoroethyl, fluoropropyl,_chlorobutyl, methoxymethyl, ethoxymethyl and the like. Examples_of aryl include those with 6_to about 30 carbon atoms,_such as_phenyl, biphenyl, naphthyl, and the_like; and substituted_aryl with_6 to about_30 carbon atoms. Illustrative examples of_substituted aryl are_methylphenyl, ethylphenyl, propylphenyl, butylphenyl, dimethylphenyl, trimethylphenyl,_tetramethylphenyl_and the like._The_substituted_aryl may_additionally contain halogen_atoms_such as_fluoride,_chloride, or bromide. Illustrative examples include_trifluoromethylphenyl,_chlorophenyl, perfluorophenyl, fluorophenyl, dichlorophenyl, and the like._Illustrative examples of the_ring_structures R3 and R7_include cyclopropyl, cyclobutyl, cyclohexyl, cyclopentyl,_cyclooctyl, and the like.
Examples of Ar1,_Ar2, Ar3,_and Ar4_and the substituted derivatives thereof with alkyl or halogen include aryl_with 6 to about 60 carbon_atoms, such as phenyl,_biphenyl, naphthyl,_methylenephenyl,_dimethylenephenyl, binaphthyl and_the_like. Aryl_may contain an alkyl substituent such as_methyl, ethyl,_isopropyl and the like; a halogen_substituent such as fluorine,_chlorine,_or bromine. Illustrative examples of halogenated_aryl are fluorophenyl, perfluorophenyl, fluoromethylphenyl, fluoropropylphenyl,_chlorophenyl, dichlorophenyl, and the like