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Volumn , Issue 14, 2008, Pages 2142-2146

Synthesis of bispyrrolidines by radical cyclisation of diallylamines using phosphorus hydrides

Author keywords

Addition reactions; Cyclisations; Phosphorus; Radical reactions

Indexed keywords

AMINE; BISPYRROLIDINE DERIVATIVE; DIALLYAMINE DERIVATIVE; PHOSPHORUS; PHOSPHORUS HYDRIDE DERIVATIVE; PYRROLIDINE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 51149094775     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2008-1072789     Document Type: Article
Times cited : (8)

References (43)
  • 14
    • 33645093416 scopus 로고    scopus 로고
    • For recent work on addition reactions of phosphorus-centred radicals, see: a
    • For recent work on addition reactions of phosphorus-centred radicals, see: (a) Jessop, C. M.; Parsons, A. F.; Routledge, A.; Irvine, D. J. Eur. J. Org. Chem. 2006, 1547.
    • (2006) Eur. J. Org. Chem , pp. 1547
    • Jessop, C.M.1    Parsons, A.F.2    Routledge, A.3    Irvine, D.J.4
  • 28
    • 51149117858 scopus 로고    scopus 로고
    • All new compounds gave spectroscopic data and high-resolution mass spectrometric data consistent with their assigned structure
    • All new compounds gave spectroscopic data and high-resolution mass spectrometric data consistent with their assigned structure.
  • 29
    • 51149105970 scopus 로고    scopus 로고
    • Bis({4-methyl-1, 4-methylphenyl)sulfonyl]-3-pyrrolidinyl}methyl) phosphinic Acid (8a) A boiling solution of N,N-diallyl-4- methylbenzenesulfonamide (2a, 0.613 g, 2.439 mmol) and hypophosphorous acid (0.070 g, 1.061 mmol, in anhyd THF (5 mL) was treated with AIBN (4 x 0.087 g, 4 x 0.531 mmol) over 36 h. After cooling to r.t, brine (20 mL) was added and the mixture extracted with CH2Cl2 (3 x 20 mL, The combined layers were dried (MgSO4, concentrated (under reduced pressure, and column chromatography [SiO2, PE-EtOAc (4:6) to EtOAc-MeOH (1:1, gave phosphinic acid 8a (0.495 g, 82, as an inseparable mixture of isomers, with a cis/trans ratio of 2.2:1 (from the 1H NMR spectrum, white solid; mp 118-127°C. IR CH 2Cl2, νmax, 3541, 3058, 2964, 2882, 1598, 1479, 1454, 1406, 1384, 1337, 1160, 1093, 1044, 955 cm-1. cis-Diastereomers: 1
    • 2: 567.1758; found: 567.1752.
  • 34
    • 51149105754 scopus 로고    scopus 로고
    • 2 (4.3 equiv) in degassed dioxane for 3 d, followed by esterification, gave a 4.7:1 mixture of 9 and 10, respectively, in a combined yield of only 34%.
    • 2 (4.3 equiv) in degassed dioxane for 3 d, followed by esterification, gave a 4.7:1 mixture of 9 and 10, respectively, in a combined yield of only 34%.
  • 41
    • 51149085689 scopus 로고    scopus 로고
    • -1, respectively. McGrady, J. E.; Pantazis, D. unpublished results.
    • -1, respectively. McGrady, J. E.; Pantazis, D. unpublished results.
  • 42
    • 51149121499 scopus 로고    scopus 로고
    • 0-(3, 4-Methyl-1, 4-methylphenyl)sulfonyl]-3-pyrrolidinyl}methyl, phenyl)phosphorothioyl]oxy}propyl){4-methyl-1, 4-methylphenyl)sulfonyl, 3-pyrrolidinyl}methyl(phenyl)phosphinothioate (16a) A boiling solution of N,N-diallyl-4-methylbenzene sulfonamide (2a, 0.372 g, 1.479 mmol) and O-(3, phenyl(thioxo)phosphoranyl]oxy}propyl)phenylphosphinothioate (14, 0.264 g, 0.741 mmol) in anhyd THF (15 mL) was treated portionwise with AIBN (4 x 0.024 g, 4 x 0.148 mmol) over 36 h. After cooling to r.t, 1 M aq NaOH (20 mL) was added and the mixture extracted with CH2Cl 2 (3 x 15 mL, The combined organic layers were dried (MgSO 4, concentrated (under reduced pressure, and column chromatography [SiO2, CH2Cl2-EtOAc (97:3, gave bispyrrolidine 16a (0.477 g, 75, as an inseparable mixture of isomers, with a cis/trans ratio of 2.5:1 from the 1H NMR spectrum, white solid
    • 4: 859.2256; found: 859.2264.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.