Synthesis of cyclic compounds
AssigneeUnisearch Limited
InventorsNaresh Kumar, Roger Wayne Read
Life of this patent
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Abstract
A method for the preparation of a compound of formula (II) wherein R1 and R2 are independently H, alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, optionally interrupted by one or more hetero atoms, straight chain or branched chain, hydrophilic, hydrophobic or fluorophilic; R3, R4, R5 and R6 are independently or all hydrogen or halogen; provided that at least two of the R3, R4, R5 and R6 are halogens.
Claims8
A method for the dehydrohalogenation of a compound of formula IV:
- wherein R2 is independently H, halogen, alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, straight chain or branched chain, hydrophilic or fluorophilic;
- R4 is selected from halogen, OH and Oalkyl;
- R5 are halogen;
- R1 and R3 are independently or both hydrogen or halogen;
- and “” is a single bond or double bond,
- to prepare a compound of formula V
- wherein R2 is a H, alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, straight chain or branched chain, hydrophobic, hydrophilic or fluorophilic;
- R4 is a halogen;
- R1 and R3 are independently or both hydrogen or halogen;
- the method comprising contacting a compound of formula IV with a base.
A compound of formula V:
- wherein R2 is an alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, straight chain or branched chain, hydrophobic, hydrophilic or fluorophilic;
- R4 is a halogen;
- R1 and R3 are independently or both hydrogen or halogen;
- excluding compounds in which:
- R1=H, R2=Me or Ph, R3=I, R4=H;
- and
- R1=H, R2=OMe, R3=Cl, R4=Cl.
An oligomer or polymer formed by oligomerising or polymerising a compound of formula V, directly or with one or more monomers
- wherein R2 is an alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, straight chain or branched chain, hydrophobic, hydrophilic or fluorophilic;
- R4 is a halogen
- R1 and R3 are independently or both hydrogen or halogen;
- wherein R2 is an alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, straight chain or branched chain, hydrophobic, hydrophilic or fluorophilic;
- R3 and R4 are hydrogen;
- and
- R1 is a halogen,
- wherein R2 is independently H, halogen, alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, straight chain or branched chain, hydrophilic or fluorophilic;
- R4 is selected from halogen, OH and Oalkyl;
- R5 are halogen;
- R1 and R3 are independently or both hydrogen or halogen;
- and “” is a single bond or double bond,
- wherein R2 is a H, alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, straight chain or branched chain, hydrophobic, hydrophilic or fluorophilic;
- R4 is a halogen;
- R1 and R3 are independently or both hydrogen or halogen;
- wherein R2 is a H, halogen, alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, straight chain or branched chain, hydrophobic, hydrophilic or fluorophilic;
- R4 is a halogen;
- R1 is hydrogen;
- and
- R3 is a hydrogen or halogen;
- wherein R2 is a H, alkyl, alkoxy, oxoalkyl, alkenyl, aryl or arylalkyl whether unsubstituted or substituted, straight chain or branched chain, hydrophobic, hydrophilic or fluorophilic;
- R4 is a hydrogen, halogen;
- R1 and R3 are independently or both hydrogen or halogen;
- z is independently selected from the group R2, halogen, OC(O)R2, ═O, amine azide, thiol, R2, mercaptoaryl, arylalkoxy, mercaptoarylalkyl, SC(O)R2, OS(O)2R2, NHC(O)R2, ═NR2 or NHR2.
An article incorporating at least one compound of formula V in a surface coating(s) or polymer(s) through the newly introduced functionality on the alkyl chain or the alkyl chain itself via direct polymerisation or copolymerisation with suitable monomers.
Dependencies are inferred from the claim text.