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Volumn 40, Issue 31, 1999, Pages 5655-5659

Sequential mono-N-arylation of piperazine nitrogens. Part 1: A simplified method and its application to the preparation of a key N,N'-biaryl piperazine antifungal intermediate

Author keywords

[No Author keywords available]

Indexed keywords

ANTIFUNGAL AGENT; N (4 HYDROXYPHENYL) N' (4 AMINOPHENYL)PIPERAZINE; NITROGEN; PIPERAZINE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 0033618356     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(99)01103-X     Document Type: Article
Times cited : (33)

References (28)
  • 5
    • 0031048479 scopus 로고    scopus 로고
    • Compound 18 represents 7 of Ref. 3c. A small amount of bis arylation was seen for 18. The crude reaction was high yielding, unoptimized isolation procedure caused lower isolated yields of 18
    • (c) Orjales, A.; Mosquera, R.; Labeaga, L.; Rodes, R. J. Med. Chem. 1997, 40, 586. Compound 18 represents 7 of Ref. 3c. A small amount of bis arylation was seen for 18. The crude reaction was high yielding, unoptimized isolation procedure caused lower isolated yields of 18.
    • (1997) J. Med. Chem. , vol.40 , pp. 586
    • Orjales, A.1    Mosquera, R.2    Labeaga, L.3    Rodes, R.4
  • 14
    • 0009646853 scopus 로고    scopus 로고
    • JP-09255671 (Konica Chem KK)
    • (a) JP-09255671 (Konica Chem KK); 1997;
    • (1997)
  • 16
    • 0009581463 scopus 로고    scopus 로고
    • Eur. Pat. 91-103485; CA 115 (21): 232295w
    • (c) Schroeder, W.; Ruider, G. Eur. Pat. 91-103485; CA 115 (21): 232295w.
    • Schroeder, W.1    Ruider, G.2
  • 17
    • 0009581278 scopus 로고
    • CA 97:55773. In some cases the use of alkyl/arylamine in place of ammonia results in moderate yields of differentially N,N' substituted piperazines
    • (a) Bartulin, J.; Zuniga, C.; Retamal, J. Bol. Soc. Chil. Quim. 1982, 27, 144 [CA 97:55773]. In some cases the use of alkyl/arylamine in place of ammonia results in moderate yields of differentially N,N' substituted piperazines;
    • (1982) J. Bol. Soc. Chil. Quim. , vol.27 , pp. 144
    • Bartulin, J.1    Zuniga, C.2    Retamal3
  • 25
    • 0033618313 scopus 로고    scopus 로고
    • 2) electron withdrawing groups on the aryl group (e.g. 15 and 16); (iii) improving the hydrogen bonding capacity as shown in the following article in this issue; or (iv) by enhancing the electrophilicity of the reacting species, as in the case of formation of 30 (via metal catalysis)
    • 2) electron withdrawing groups on the aryl group (e.g. 15 and 16); (iii) improving the hydrogen bonding capacity as shown in the following article in this issue (Eckert, J.; Chan, T.-M.; Gala, D. Tetrahedron Lett. 1999, 40, 5661); or (iv) by enhancing the electrophilicity of the reacting species, as in the case of formation of 30 (via metal catalysis).
    • (1999) Tetrahedron Lett. , vol.40 , pp. 5661
    • Eckert, J.1    Chan, T.-M.2    Gala, D.3
  • 27
    • 0032492942 scopus 로고    scopus 로고
    • Similar arylations of nitrogen containing compounds were recently reported; however, this is the first example of a piperazine derivative. Also, the use of DMSO as solvent was contraindicated in the reference, but for our example, it was the best solvent used
    • Similar arylations of nitrogen containing compounds were recently reported (see Chan, D. M. T.; Monaco, K. L.; Wang, R.-P.; Winters, M. P. Tetrahedron Lett. 1998, 39, 2933); however, this is the first example of a piperazine derivative. Also, the use of DMSO as solvent was contraindicated in the reference, but for our example, it was the best solvent used.
    • (1998) Tetrahedron Lett. , vol.39 , pp. 2933
    • Chan, D.M.T.1    Monaco, K.L.2    Wang, R.-P.3    Winters, M.P.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.