Conjugate addition of electron-rich aromatics to acrolein in the confined space of zeolite Y

Chemistry Letters

Volumn 34, Issue 5, 2005, Pages 708-709

  Imachi, Shouhei ^a   Onaka, Makoto ^a  

^a UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 22244479994     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.2005.708     Document Type: Article

References (12)

1. T. Okachi and M. Onaka, J. Am. Chem. Soc., 126, 2306 (2004).
2. M. Monduzzi, R. Monaci, and V. Solinas, J. Colloid Interface Sci., 120, 8 (1987).
3. S. Imachi and M. Onaka, Tetrahedron Lett., 45, 4943 (2004).
4. G. Desimoni and G. Tacconi, Chem. Rev., 75, 651 (1975).
5. G. A. Olah, R. Krishnamurti, and G. K. S. Prakash, in "Comprehensive Organic Synthesis," ed. by B. M. Trost and I. Fleming, Pergamon Press, Oxford (1991), Vol. 3, p 293.
6. M. Strell and A. Kalojanoff, Chem. Ber., 87, 1025 (1954).
7. D. J. Denhart, R. J. Mattson, J. L. Ditta, and J. E. Macor, Tetrahedron Lett., 45, 3803 (2004);
8. J. F. Austin and D. W. MacMillan, J. Am. Chem. Soc., 124, 1172 (2002).
9. 2/g, MERCK).
10. Solid NMR measurements were carried out by means of single pulse direct excitation with proton decoupling (90° pulse = 5 μs, 5-s pulse delay, 1000 scans) and the probe temperature was maintained at 273 K. Chemical shifts were referenced to TMS as an internal standard, and sample spinning rates were adjusted to ca. 3 kHz.
11. A broad signal near 110 ppm was inevitably derived from the carbonaceous components around the sample probe in the NMR instrument (Chemagnetics CMX-300).
12. 3): δ 17.5, 43.8, 112.2, 114.3, 118.0, 122.4, 123.0, 125.0, 128.0, 134.6, 202.4.