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Volumn 45, Issue 2, 2004, Pages 401-405

Mild and efficient synthesis of carbazates and dithiocarbazates via a three-component coupling using Cs2CO3 and TBAI

Author keywords

Azadepsipeptide; Carbazates; Cesium carbonate; Dithiocarbazates; Hydrazine

Indexed keywords

ALKYL GROUP; CARBON DIOXIDE; CARBONIC ACID DERIVATIVE; CESIUM; CESIUM CARBONATE; HYDRAZINE; HYDRAZINE DERIVATIVE; PEPTIDE DERIVATIVE; TETRABUTYLAMMONIUM; UNCLASSIFIED DRUG;

EID: 0345735501     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2003.10.144     Document Type: Article
Times cited : (30)

References (55)
  • 35
    • 85030919266 scopus 로고    scopus 로고
    • U.S. Patent P2658254.7, 1975
    • (c) Dorn, C. P.; Yang, S. S. U.S. Patent P2658254.7, 1975
    • Dorn, C.P.1    Yang, S.S.2
  • 42
    • 0037156592 scopus 로고    scopus 로고
    • 2) incorporation and/or stabilizing the incipient anion through the conjugation with the tetrabutylammonium cation. In the absence of TBAI, poor product yields resulted along with side products stemming from direct N-alkylation. For similar results using TBAI in faciliating carbamate and carbonate formation, see: Salvatore R.N., Chu F., Nagle A.S., Kapxhiou E.A., Cross R.M., Jung K.W. Tetrahedron. 58:2002;3329. Also, tetrabutylammonium bromide (TBAB) and various other onium salts have been utilized in supercritical carbon dioxide for the selective formation of urethanes. See: Yoshida M., Hara N., Okuyama S. Chem. Commun. 2000;151.
    • (2002) Tetrahedron , vol.58 , pp. 3329
    • Salvatore, R.N.1    Chu, F.2    Nagle, A.S.3    Kapxhiou, E.A.4    Cross, R.M.5    Jung, K.W.6
  • 43
    • 0034695653 scopus 로고    scopus 로고
    • 2) incorporation and/or stabilizing the incipient anion through the conjugation with the tetrabutylammonium cation. In the absence of TBAI, poor product yields resulted along with side products stemming from direct N-alkylation. For similar results using TBAI in faciliating carbamate and carbonate formation, see: Also, tetrabutylammonium bromide (TBAB) and various other onium salts have been utilized in supercritical carbon dioxide for the selective formation of urethanes. See:
    • 2) incorporation and/or stabilizing the incipient anion through the conjugation with the tetrabutylammonium cation. In the absence of TBAI, poor product yields resulted along with side products stemming from direct N-alkylation. For similar results using TBAI in faciliating carbamate and carbonate formation, see: Salvatore R.N., Chu F., Nagle A.S., Kapxhiou E.A., Cross R.M., Jung K.W. Tetrahedron. 58:2002;3329. Also, tetrabutylammonium bromide (TBAB) and various other onium salts have been utilized in supercritical carbon dioxide for the selective formation of urethanes. See: Yoshida M., Hara N., Okuyama S. Chem. Commun. 2000;151.
    • (2000) Chem. Commun. , pp. 151
    • Yoshida, M.1    Hara, N.2    Okuyama, S.3
  • 52
    • 85030921826 scopus 로고    scopus 로고
    • note
    • 2: C, 67.17; H, 8.86; N, 11.19. Found: C, 67.12; H, 8.82; N, 11.21.
  • 53
    • 85030932663 scopus 로고    scopus 로고
    • note
    • 2: C, 53.30; H, 6.71; N, 10.36. Found: C, 53.26; H, 6.65; N, 10.33.
  • 55
    • 85030933881 scopus 로고    scopus 로고
    • note
    • 13C NMR, and 2D NMR analysis indicate the product as a single diastereomer.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.