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Volumn 70, Issue 25, 2005, Pages 10408-10419

In- or In(I)-employed tailoring of the stereogenic centers in the Reformatsky-type reactions of simple ketones, á-alkoxy ketones, and β-keto esters

Author keywords

[No Author keywords available]

Indexed keywords

CHELATION; DERIVATIVES; ESTERS; ORGANIC SOLVENTS; REACTION KINETICS; SINGLE CRYSTALS; STEREOCHEMISTRY; X RAY CRYSTALLOGRAPHY;

EID: 28744445551     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo051659w     Document Type: Article
Times cited : (52)

References (76)
  • 2
    • 28744443165 scopus 로고
    • For recent reviews on Reformatsky reactions, see: (a) Fürstner. A. Synthesis 1989, 571.
    • (1989) Synthesis , vol.571
    • Fürstner, A.1
  • 16
    • 0037571395 scopus 로고
    • For reviews on indium reagents, see: (a) Cintas, P. Synlett 1995, 1087.
    • (1995) Synlett , pp. 1087
    • Cintas, P.1
  • 43
    • 33847802004 scopus 로고
    • For early works dealing with nondiastereoselective Reformatsky-type reactions, see: (a) Chao, L.-C.; Rieke, R. D. J. Org. Chem. 1975, 40, 2253.
    • (1975) J. Org. Chem. , vol.40 , pp. 2253
    • Chao, L.-C.1    Rieke, R.D.2
  • 51
    • 28744442734 scopus 로고    scopus 로고
    • note note
    • (a) Reported yield for this reaction is 99% (ds 3:2) using HIU (20 kHz, 600 W, 13 mm tip diameter at a power level of 7); see ref 6. (b) In some of the cases, InBr was employed. The results are comparable with indium metal as noted in our preliminary studies; see ref 9.
  • 52
    • 28744432288 scopus 로고    scopus 로고
    • note
    • (c) The reactions were carried out using method A.
  • 56
    • 0001091444 scopus 로고
    • For selective reactions under the chelation-controlled conditions, see: (a) Reetz, M. T. Acc. Chem. Res. 1993, 26, 462.
    • (1993) Acc. Chem. Res. , vol.26 , pp. 462
    • Reetz, M.T.1
  • 57
    • 0010771837 scopus 로고
    • For the chelation-controlled aldol-type additions to α-alkoxy aldehydes using enol silanes, see
    • (b) Reetz, M. T. Angew. Chem. Int. Ed. Engl. 1994, 23, 556. For the chelation-controlled aldol-type additions to α-alkoxy aldehydes using enol silanes, see:
    • (1994) Angew. Chem. Int. Ed. Engl. , vol.23 , pp. 556
    • Reetz, M.T.1
  • 62
    • 13944255122 scopus 로고    scopus 로고
    • and references therein
    • 2-mediated Reformatsky-type reactions: (a) Orsini, F.; Lucci, E. M. Tetrahedron Lett. 2005, 46, 1909 and references therein.
    • (2005) Tetrahedron Lett. , vol.46 , pp. 1909
    • Orsini, F.1    Lucci, E.M.2
  • 66
    • 28744441029 scopus 로고    scopus 로고
    • note
    • 4 (6 mmol) for 1 mmol of substrate at room temperature.
  • 67
    • 28744439080 scopus 로고    scopus 로고
    • note
    • The complete isolation of isomers and the determination of isomeric ratio is under investigation on the stereoselective construction of three subsequent stereogenic centers.
  • 68
    • 28744450048 scopus 로고    scopus 로고
    • note
    • 1 NMR spectra see ref 9 and the Supporting Information therein.
  • 69
    • 0001310676 scopus 로고    scopus 로고
    • Similar results have been discussed by Chan et al. for the generation of allyl- or allenylindiums from indium metal and allyl- or propargyl bromide, respectively, in DMF solution, see: (a) Chan, T. H.; Yang, Y. J. Am. Chem. Soc. 1999, 121, 3228.
    • (1999) J. Am. Chem. Soc. , vol.121 , pp. 3228
    • Chan, T.H.1    Yang, Y.2
  • 73
    • 28744436884 scopus 로고    scopus 로고
    • note
    • (a) A similar trend was observed in THF as noted in ref 9.
  • 74
    • 28744435562 scopus 로고    scopus 로고
    • note
    • 3 also afforded a similar type of spectra and species (see the Supporting Information for the spectra).
  • 75
    • 28744444219 scopus 로고    scopus 로고
    • note
    • 3 as well as InCl systems. See the Supporting Information for the spectra.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.