Indium triflate: An efficient catalyst for acylation reactions

Synlett

Volumn , Issue 11, 1999, Pages 1743-1744

  Chauhan, Kamlesh K ^a   Frost, Christopher G ^a   Love, Ian ^a   Waite, David ^b  

^a University of Bath Claverton Down   (United Kingdom)

^b PFIZER GLOBAL RESEARCH AND DEVELOPMENT   (United Kingdom)

Author keywords

Acetylation; Alcohols; Amines; Catalysis; Indium

Indexed keywords

ALCOHOL DERIVATIVE; AMINE; INDIUM;

ACETYLATION; ACYLATION; ARTICLE; CATALYSIS; CATALYST; CHEMICAL REACTION;

EID: 0032753189     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1999-2941     Document Type: Article

References (11)

1. Scriven, E. F. V. Chem Soc. Rev. 1983, 12, 129.
2. Chandrasekhar, S.; Ramachander, T.; Takhi, M. Tetrahedron Lett. 1998, 39, 3263.
3. Procopiou, P. A.; Baugh, S. P. D.; Flack, S. S.; Ingliss, G. G. A. J. Org Chem. 1998, 63, 2342.
4. Saravanan, P.; Singh, V. K. Tetrahedron Lett. 1999, 40, 2611.
5. (a) Ishihara, K.; Kubota, M.; Kurihara, H.; Yamamoto, H. J. Am. Chem. Soc. 1995, 117, 4413.
6. (b) Ishihara, K.; Kubota, M.; Kurihara, H.; Yamamoto, H. J. Org. Chem. 1996, 61, 4560.
7. For previous work on the use of indium complexes as Lewis acids see Ali, T.; Chauhan, K. K.; Frost C. G. Tetrahedron Lett. 1999, 40, 5621 and references therein.
8. Strem catalogue No. 17, 1997-99; Scandium triflate (min. 97%) £25.00/g; Indium triflate (99%) £8.00/g.
9. 3, 270 MHz) δ 2.23 (3H, s), 7.04-7.36 (5H, m).
10. 3, 270 MHz) δ 2.06 (6H, s), 2.08 (6H, s), 2.10 (6H, s), 4.10 (4H, m), 5.05 (2H, m), 5.44 (2H, m).
11. 3, 270 MHz) δ 1.27 (4H, m), 1.75 (2H, m), 1.94 (6H, s), 2.03 (2H, m), 3.65 (2H, m), 6.15 (2H, br s).