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Volumn 10, Issue 7, 2008, Pages 1489-1492

Stereospecific construction of a trans-1,4-diphosphacyclohexane skeleton

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EID: 59849090940     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol800261j     Document Type: Article
Times cited : (21)

References (45)
  • 26
    • 33845573547 scopus 로고    scopus 로고
    • 2, i.e., 1,3-diphosphacyclobutane skeleton) cyclic cations from the corresponding phospha-alkenes: Bates, J. I.; Gates, D. P. J. Am. Chem. Soc. 2006, 128, 15998.
    • 2, i.e., 1,3-diphosphacyclobutane skeleton) cyclic cations from the corresponding phospha-alkenes: Bates, J. I.; Gates, D. P. J. Am. Chem. Soc. 2006, 128, 15998.
  • 38
    • 59849093901 scopus 로고    scopus 로고
    • The reaction without amine or with other amines such as N,N,N′,N′-tetramethylethylenediamine (TMEDA) as a ligand proceede smoothly to obtain the corresponding 1,4-diphosphacyclohexane; however, the best result was obtained when (-)-sparteine was employed in the lithiation step.
    • The reaction without amine or with other amines such as N,N,N′,N′-tetramethylethylenediamine (TMEDA) as a ligand proceede smoothly to obtain the corresponding 1,4-diphosphacyclohexane; however, the best result was obtained when (-)-sparteine was employed in the lithiation step.
  • 39
    • 59849116288 scopus 로고    scopus 로고
    • The oxidative intramolecular coupling reaction of enantiomer (R,R)-1 also provides the trans isomer (trans-2) stereospecifically. Synthesis of (R,R)-1a was reported by Imamoto and Crépy: Imamoto, T.; Crépy K. V. L. Tetrahedron Lett. 2002, 43, 7735.
    • The oxidative intramolecular coupling reaction of enantiomer (R,R)-1 also provides the trans isomer (trans-2) stereospecifically. Synthesis of (R,R)-1a was reported by Imamoto and Crépy: Imamoto, T.; Crépy K. V. L. Tetrahedron Lett. 2002, 43, 7735.
  • 40
    • 59849087452 scopus 로고    scopus 로고
    • w = 0.137, GOF = 1.092.
    • w = 0.137, GOF = 1.092.
  • 41
    • 59849125729 scopus 로고    scopus 로고
    • ORTEP drawing of trans-2a is shown in Figure S14 in the Supporting Information, although a desired single crystal could not be obtained.
    • ORTEP drawing of trans-2a is shown in Figure S14 in the Supporting Information, although a desired single crystal could not be obtained.
  • 42
    • 59849100647 scopus 로고    scopus 로고
    • The stereoselective or stereospecific synthesis of meso-1 has not yet been achieved and challenged.
    • The stereoselective or stereospecific synthesis of meso-1 has not yet been achieved and challenged.
  • 43
    • 59849128489 scopus 로고    scopus 로고
    • Original spectra are shown in Figures S9 and S10 in the Supporting Information.
    • Original spectra are shown in Figures S9 and S10 in the Supporting Information.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.