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Volumn 73, Issue 4, 2008, Pages 1612-1615

Synthesis of 3-substituted-3,4-dihydro-2H-1,3-benzothiazin-2-ones via a highly regioselective palladium-catalyzed carbonylation of 2-substituted-2,3- dihydro-1,2-benzisothiazoles

Author keywords

[No Author keywords available]

Indexed keywords

CARBONYLATION; CATALYSIS; PALLADIUM COMPOUNDS; REGIOSELECTIVITY; SUBSTITUTION REACTIONS; SYNTHESIS (CHEMICAL);

EID: 39349108879     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo702146n     Document Type: Article
Times cited : (19)

References (42)
  • 23
    • 39349093641 scopus 로고    scopus 로고
    • Agency of industrial Science and Technology
    • U.S. Patent 4,990,629
    • (b) Souma Y. Agency of industrial Science and Technology. U.S. Patent 4,990,629.
    • Souma, Y.1
  • 34
    • 39349095371 scopus 로고    scopus 로고
    • It must be noted that the efficiency of this process is highly dependent on the nature of the alkyl amine. With some of the substrates the overall yields were acceptable (48-55, but with some other alkyl amines, this tandem oxidation-[2,3]-sigmatropic rearrangement-nucleophilic substitution process was low yielding see the Experimental Section, A possible solution to this problem could be to follow a different approach, see ref 15d. However, we decided to employ this strategy for all our substrates due to the inherent convenience of utilizing the one-pot reaction sequence
    • (c) It must be noted that the efficiency of this process is highly dependent on the nature of the alkyl amine. With some of the substrates the overall yields were acceptable (48-55%) but with some other alkyl amines, this tandem oxidation-[2,3]-sigmatropic rearrangement-nucleophilic substitution process was low yielding (see the Experimental Section). A possible solution to this problem could be to follow a different approach, see ref 15d. However, we decided to employ this strategy for all our substrates due to the inherent convenience of utilizing the "one-pot" reaction sequence,
  • 41
    • 13244289979 scopus 로고    scopus 로고
    • For some other examples on Pd-mediated carbonylation of the N-S bond, see: b
    • For some other examples on Pd-mediated carbonylation of the N-S bond, see: (b) Knapton, D. J.; Meyer, T. Y. J. Org. Chem. 2005, 70, 785.
    • (2005) J. Org. Chem , vol.70 , pp. 785
    • Knapton, D.J.1    Meyer, T.Y.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.