Mild and efficient tetrahydropyranylation and deprotection of alcohols catalyzed by heteropoly acids

Tetrahedron Letters

Volumn 37, Issue 47, 1996, Pages 8597-8600

  Molnár, Árpád ^b   Beregszászi, Tímea ^a  

^a UNIVERSITY OF SZEGED   (Hungary)

^b NONE

Author keywords

[No Author keywords available]

Indexed keywords

ALCOHOL DERIVATIVE; PHENOL DERIVATIVE; TETRAHYDROPYRAN DERIVATIVE;

ARTICLE; CATALYSIS; DRUG SYNTHESIS; REACTION ANALYSIS; TECHNIQUE;

EID: 0141991443     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/0040-4039(96)01965-X     Document Type: Article

References (12)

1. 1 Greene, T.W. and Wuts, P.G.M. Protective Groups in Organic Synthesis, 2nd ed., Wiley: New York, 1991, pp. 31-34.
2. 2 Ranu, B.C. and Saha, M. J. Org. Chem. 1994, 59, 8269.
3. 3 Bandgar, B.P., Jagtap, S.R., Aghade, B.B. and Wadgaonkar, P.P. Synth. Commun. 1995, 25, 2211.
4. 4 Miura, T. and Masaki, Y. Synth. Commun. 1995, 25, 1981.
5. 5 Choi, H.C., Cho, K.I. and Kim, Y.H. Synlett 1995, 207.
6. 6 a. Ono, Y. Perspectives in Catalysis, Thomas, J.M. and Zamaraev, K.I., eds., Blackwell, London, 1992, p. 431.
7. b. Misono, M. Stud. Surf. Sci. Catal. 1993, 75, 69.
8. c. Izumi, Y., Urabe, K. and Onaka, M. Zeolite, Clay and Heteropoly Acid in Organic Reactions, Kodansha, Tokyo/VCH, New York, 1993, Chapter 3.
9. d. Jansen, R.J.J., van Veldhuizen, H.M., Schwegler, M.A. and van Bekkum, H. Recl. Trav. Chim. Pays-Bas 1994, 113, 115.
10. 40] was a Riedel-de-Haen product.
11. 8 Carlo Erba Fractovap Mod G equipment, thermal conductivity detector, 15% SE 52 on Kieselguhr column (1.2 m), hydrogen carrier gas.
12. 9 Basic alumina is prepared by thoroughly mixing 1000 g alumina with 20 ml 5M NaOH. The mixture is allowed to stand for a few days with frequent shaking.