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        Synthesis  2006(19): 3231-3237  
DOI: 10.1055/s-2006-950183
   DOI: 10.1055/s-2006-950183
PAPER
© Georg Thieme Verlag Stuttgart · New YorkOne-Carbon Homologation of Aldehydes to N-(α-Haloacyl)benzotriazoles
Weitere Informationen
            
               
                  
                        
                              Received
                              27 April 2006 
                      
Publikationsdatum:
15. August 2006 (online)
            
         
      
   Publikationsverlauf
Publikationsdatum:
15. August 2006 (online)

Abstract
One-carbon homologated N-(α-haloacyl)benzotriazoles have been synthesized from the corresponding aromatic and aliphatic aldehydes. Vinylbenzotriazoles, prepared by the reaction of aldehydes with the one-carbon synthon BtCH2P+Ph3Cl-, were subsequently treated with Br2/Et3N to give 1-bromovinylbenzotriazoles. These were then treated with NBS/NIS in CH3CN-H2O to furnish one-carbon homologated N-(α-haloacyl)benzotriazoles in 53-77% yields. We have also demonstrated the utility of these new reagents in organic synthesis.
Key words
N-acylbenzotriazole - homologation - aldehyde - acylation - N-halosuccinimide
- 1a 
             
            Katritzky AR.Suzuki K.Wang Z. Synlett 2005, 1656
- 1b 
             
            Katritzky AR.Pastor A. J. Org. Chem. 2000, 65: 3679
- 1c 
             
            Wang X.Zhang Y. Tetrahedron Lett. 2002, 43: 5431
- 1d 
             
            Katritzky AR.Meher NK.Singh SK. J. Org. Chem. 2005, 70: 7792
- 1e 
             
            Katritzky AR.Fang Y.Donkor A.Xu J. Synthesis 2000, 2029
- 1f 
             
            Katritzky AR.Abdel-Fattah AAA.Akhmedova RG. Arkivoc 2005, (vi): 329
- 1g 
             
            Katritzky AR.Suzuki K.Singh SK.He H.-Y. J. Org. Chem. 2003, 68: 5720
- 1h 
             
            Katritzky AR.Suzuki K.Singh SK. Croat. Chem. Acta 2004, 77: 175
- 2a 
             
            Katritzky AR.He H.-Y.Suzuki K. J. Org. Chem. 2000, 65: 8210
- 2b 
             
            Katritzky AR.Wang M.Yang H.Zhang S.Akhmedov NG. Arkivoc 2002, (viii): 134
- 2c 
             
            Katritzky AR.Yang H.Zhang S.Wang M. Arkivoc 2002, (xi): 39
- 2d 
             
            Katritzky AR.Suzuki K.Singh SK. Synthesis 2004, 2645
- 2e 
             
            Katritzky AR.Hoffmann S.Suzuki K. Arkivoc 2004, (xii): 14
- 3 
             
            Karitzky AR.Pastor A.Voronkov MV. J. Heterocycl. Chem. 1999, 36: 777
- 4 
             
            Baradarani MM.Khalafy J.Prager RH. Aust. J. Chem. 1999, 52: 775
- 5 
             
            Katritzky AR.Cai C.Suzuki K.Singh SK. J. Org. Chem. 2004, 69: 811
- 6 
             
            Katritzky AR.Shestopalov AA.Suzuki K. Synthesis 2004, 1806
- 7 
             
            Katritzky AR.Zhang Y.Singh SK. Synthesis 2003, 2795
- 8 
             
            Katritzky AR.Shobana N.Juliusz P.Pernak J.Afridi AS.Fan W.-Q. Tetrahedron 1992, 48: 7817
- 9 
             
            Harpp DN.Bao LQ.Black CJ.Gleason JG.Smith RA. J. Org. Chem. 1975, 40: 3420 ; and references cited therein
- 10 
             
            Kwart H.Scalzi FV. J. Am. Chem. Soc. 1964, 86: 5496
- 11 
             
            Cook AG.Fields EK. J. Org. Chem. 1962, 27: 3686
- 12 
             
            Katritzky AR.Offerman RJ.Cabildo P.Soleiman M. Recl. Trav. Chim. Pays-Bas 1988, 107: 641
- 13 
             
            Katritzky AR.Rachwal S.Caster KC.Mahni F. J. Chem. Soc., Perkin Trans. 1 1987, 781
- 14 
             
            Katritzky AR.Jiang R.Sommen GL.Singh SK. Arkivoc 2004, (ix): 44
- 15 
             
            Katritzky AR.Ferwanah AS.Denisenko SN. Heterocycles 1999, 50: 767
- 16 
             
            Hoffman RV.Nayyar NK.Chen W. J. Org. Chem. 1992, 57: 5700
- 17 
             
            Braun J.Munch W. Ber. Dtsch. Chem. Ges. B 1927, 60: 345
 
    