Improved Methods for the Synthesis of N-Acyltetrahydroisoquinolines

References

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• Compounds 7a-h and7j-m were compared by their spectral data with the previously reported in references 2 4.
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• The 1H-NMR spectra for 7i 7n-q were recorded on a Perkin-Elmer R-24B spectrometer in CDCI3 (TMS) and are as follows: 7i 2. 79(t,2H, J=9), 3.52 (t,2H, J=9), 3.70(s,3H), 3.75(s,3H), 4.52(s,2H), 6.52 (s,1H), 6.58(s,1H), 6.80–7.35(m,5H); 7n 2.85(t,2H, J=11), 3.30(t,2H, J=11), 3.82(s,3H), 3.90(s,3H), 6.38 (s,1H), 6.48(s,1H), 6.65(s,1H), 6.78(s,1H), 7.00–7.25 (m,5H); 7o 2.85(t,2H, J=11), 3.30(t,2H, J=11),3.64 (s,3H), 3.80(s,3H), 6.58(s,1H), 6.64(s,1H), 6.78 (s,1H), 7.12–7.30(m,5H); 7p 2.85(t,2H, J=10), 3.25 (t,2H, J=10), 3.72(s,3H), 3.85(s,3H), 4.10(s,2H), 6.38(s,1H), 6.60(s,1H), 6.70(s,1H), 7.29 (d,2H, J=16), 8.00 (d,2H, J=16); 7q 2.85(t,2H, J=12), 3.25 (t,2H, J=12), 3.40(s,3H), 3.82(s,3H), 3.90(s,3H), 4.20(s,2H), 6.48(s,1H), 6.65(s,1H), 6.78 (s,1H), 7.48(d,2H, J=10), 8.02(d,2H, J=10).
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