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Volumn , Issue 4, 2007, Pages 611-614

Phosphinamide-directed ortho metalations: Application to the desymmetrization of the diphenylphosphoryl group

Author keywords

Diastereoselectivity; Directed metalation; Organotin; ortho lithiation; Phosphinamides

Indexed keywords

AMIDE; DIPHENYLPHOSPHINAMIDE DERIVATIVE; HEMPA; N,N' DIMETHYLPROPYLENE UREA; UNCLASSIFIED DRUG; UREA DERIVATIVE;

EID: 33947323909     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-967976     Document Type: Article
Times cited : (17)

References (52)
  • 1
    • 0012397313 scopus 로고
    • For some recent reviews on the DoM reaction of arenes, see: a
    • For some recent reviews on the DoM reaction of arenes, see: (a) Snieckus, V. Chem. Rev. 1990, 90, 879.
    • (1990) Chem. Rev , vol.90 , pp. 879
    • Snieckus, V.1
  • 13
    • 33847800085 scopus 로고    scopus 로고
    • Phosphazenes: (a) Stuckwisch, C. G. J. Org. Chem. 1976, 41, 1173.
    • Phosphazenes: (a) Stuckwisch, C. G. J. Org. Chem. 1976, 41, 1173.
  • 16
    • 0000475158 scopus 로고    scopus 로고
    • Phosphorus ylides: Schaub, B.; Jenny, T.; Schlosser, M. Tetrahedron Lett. 1984, 25, 4097.
    • (d) Phosphorus ylides: Schaub, B.; Jenny, T.; Schlosser, M. Tetrahedron Lett. 1984, 25, 4097.
  • 17
    • 0030600637 scopus 로고    scopus 로고
    • Phosphine oxides: (e) Desponds, O.; Schlosser, M. J. Organomet. Chem. 1996, 507, 257.
    • Phosphine oxides: (e) Desponds, O.; Schlosser, M. J. Organomet. Chem. 1996, 507, 257.
  • 20
    • 0037714510 scopus 로고    scopus 로고
    • Phosphine sulfides and thiophosphinamides: Yoshifuji, M.; Ishizuka, T.; Choi, Y. J.; Inamoto, N. Tetrahedron Lett. 1984, 25, 553.
    • (h) Phosphine sulfides and thiophosphinamides: Yoshifuji, M.; Ishizuka, T.; Choi, Y. J.; Inamoto, N. Tetrahedron Lett. 1984, 25, 553.
  • 21
    • 0031822458 scopus 로고    scopus 로고
    • Phosphine-borane complexes: Desponds, O.; Huynh, C.; Schlosser, M. Synthesis 1998, 983.
    • (i) Phosphine-borane complexes: Desponds, O.; Huynh, C.; Schlosser, M. Synthesis 1998, 983.
  • 22
    • 0038052307 scopus 로고    scopus 로고
    • Phosphonamides: Dashan, L.; Trippelt, S. Tetrahedron Lett. 1983, 24, 2039.
    • (j) Phosphonamides: Dashan, L.; Trippelt, S. Tetrahedron Lett. 1983, 24, 2039.
  • 23
    • 0343847350 scopus 로고    scopus 로고
    • Thiophosphinamides: Craig, D. C.; Roberts, N. K.; Tanswell, J. L. Aust. J. Chem. 1990, 43, 1487.
    • (k) Thiophosphinamides: Craig, D. C.; Roberts, N. K.; Tanswell, J. L. Aust. J. Chem. 1990, 43, 1487.
  • 38
    • 33947330649 scopus 로고    scopus 로고
    • 15
    • 15
    • , vol.15
    • Wills1
  • 39
    • 33947327105 scopus 로고    scopus 로고
    • The analogous reaction of N,N-dialkylthiophosphinamides produced the quantitative displacement of the amino moiety. See reference 4h.
    • The analogous reaction of N,N-dialkylthiophosphinamides produced the quantitative displacement of the amino moiety. See reference 4h.
  • 40
    • 33947325384 scopus 로고    scopus 로고
    • Typical Procedure for the Synthesis of 15a′ To a solution of the phosphinamide 13 (3.11·10-4 mol) in THF (30 mL) was added a solution of n-BuLi (0.7 mL of a 1.6 M solution in cyclohexane, 10.9·10-4 mol) at -35°C. After 2 h of metalation was added chlorotrimethyltin (10.9·10-4 mol, The reaction mixture was stirred at the same temperature for 30 min and then was poured into ice water and extracted with EtOAc (3 x 15 mL, The organic layers were dried over Na2SO4 and concentrated in vacuo. 1H NMR, 1H{31P} NMR, and 31P NMR spectra of the crude reaction were measured in order to determine the stereoselectivity of the process. The reaction mixture was then purified by flash column chromatography using a mixture of EtOAc-hexane (1:5) as eluent. Spectroscopic Data of 15a′ 1H NMR 300 MHz, THF-d8, δ
    • 28NOPSn: C, 57.06; H, 5.83;
  • 46
    • 33748621482 scopus 로고    scopus 로고
    • Both substrates 13 and 14 were synthesized following literature methods: Burns, B.; King, N. P.; Tye, H.; Studley, J. R.; Gamble, M.; Wills, M. J. Chem. Soc., Perkin Trans, 1 1998, 1027.
    • Both substrates 13 and 14 were synthesized following literature methods: Burns, B.; King, N. P.; Tye, H.; Studley, J. R.; Gamble, M.; Wills, M. J. Chem. Soc., Perkin Trans, 1 1998, 1027.
  • 48
    • 33947314031 scopus 로고    scopus 로고
    • The crystal data of 18′ has been deposited in CCDC with number 625923.
    • The crystal data of 18′ has been deposited in CCDC with number 625923.
  • 51
    • 33947317613 scopus 로고    scopus 로고
    • See also ref. 4e-g
    • (c) See also ref. 4e-g.
  • 52
    • 0010623733 scopus 로고    scopus 로고
    • For other diastereoselective deprotonations of ferrocene, see:, and references therein
    • (d) For other diastereoselective deprotonations of ferrocene, see: Metallinos, C.; Snieckus, V. Org. Lett. 2002, 4, 1935; and references therein.
    • (2002) Org. Lett , vol.4 , pp. 1935
    • Metallinos, C.1    Snieckus, V.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.