http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2412661-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5ddadb999be4f451dfc44d8e359d8f6a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B43-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B29-3647 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B43-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C245-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B44-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C245-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B44-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B43-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B29-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B44-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B43-40 |
| filingDate | 2005-03-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3c3bad6aa0f77d32f603932e853f0e7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_203947f33afce3bafab96516bf41deac http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4642ec60956df4d2af77a7133fb59333 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9cafbc8f84dc561b76b64113804f8de6 |
| publicationDate | 2005-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2412661-A |
| titleOfInvention | 1,3-Disubstituted-2-[(2-amino-5-acylamino-phenyl)azo]-imidazolium salts for dyeing keratin-containing fibres, especially hair |
| abstract | Disclosed are azo dyes of formula (1) <EMI ID=3.1 HE=33 WI=50 LX=1162 LY=484 TI=CF> <PC>wherein <DL TSIZE=19> <DT>R1<DD>is hydrogen; C1-C14alkyl; hydroxy- C1-C14alkyl; C2-C14alkenyl; a radical of formula (1a) -(CH2)n1-O-(CH2)n2-CH3; a radical of formula (1b) <EMI ID=3.2 HE=16 WI=46 LX=1446 LY=904 TI=CF> C10aryl; or C6-C10aryl-C1-C6alkyl; <DT>R3<DD>is hydrogen; C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; C6-C10aryl-C1-C6alkyl; or CO-R6; <DT>R4<DD>is CO-R6; <DT>R5<DD>is C1-C14alkyl; C2-C14alkenyl; C6-C10aryl; or C6-C10aryl-C1-C6alkyl; <DT>R6<DD>is hydrogen; C1-C14alkyl; C2-C14alkenyl; or C6-C10aryl; <DT>R7, R8, R9 and R10<DD>, independently from each other are hydrogen; or C1-C5alkyl; <DT>m<DD>is 1; or 2; <DT>An<-><DD>is an anion; </DL> If m = 1, <DL TSIZE=3> <DT>R2<DD>is hydrogen; C1-C14 alkyl; hydroxy-C1-C14alkyl; C2-C14alkenyl; a radical of formula (1a); a radical of formula (1b) ; C6-C10aryl; or C6-C10aryl-C1-C6alkyl; </DL> If m = 2, <DL TSIZE=19> <DT>R2<DD>is a direct bond; or C1-C14alkylene, which is optionally substituted by one or more C1-C4alkyl, or which is optionally interrupted by C5-C10arylene, -O- or -NR9R10-; <DT>R9 and R10,<DD>independently from each other are hydrogen; or C1-C5alkyl; and <DT>n1, n2, n3 and n4,<DD>independently from each other are a number from 0 to 5. </DL> These compounds are useful for the dyeing of organic material, preferably human hair. Also claimed are compounds of formula (2a) as defined herein, which are embraced by formula (1) when alkyl, alkenyl, aryl, and alkylene are each allowed to be optionally substituted. Further claimed is a process for the preparation of a dye of formula (19) wherein <DL TSIZE=3> <DT>R3<DD>is hydrogen; an <DT>R4<DD>is CO-R6, which is characterized by </DL> <SL> <LI>(a) acylating a 4-fluoro-3-nitroanil. of formula (19a) with an acylating agent of formula (20) <LI>(b) reducing the nitro group in formula (19b) to the amino group to give the compound of formula (19c), <LI>(c) diazotizing the compound of formula (19c) to give the compund of formula (19d), <LI>(d) coupling the diazotized compound of formula (19d) with imidazole to give the compound of formula (19e), and <LI>(e) alkylating the compound of formula (19e) with an alkylating agent to give the compound of formula (19), according to the following reaction scheme: wherein R5 and R6 are defined as in claim 1; and X1 and X2 are halogen. </SL> |
| priorityDate | 2004-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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