Selective Transdithioacetalization of Acetals, Ketals, Oxathioacetals and Oxathioketals Catalyzed by Envirocat EPZ10R

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A. S. Gajare, M. S. Shingare and B. P. Bandgar


Abstract

Envirocat EPZ10R has been found to be a remarkable reusable heterogeneous catalyst for selective transdithioacetalization of acetals, ketals, oxathioacetals and oxathioketals with HSCH2CH2SH and HSCH2CH2CH2SH.


References

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  9. Mp 59 °C; IR 2900 2800, 1400, 1370, 970cm–1; 1H NMR (300 MHz, CDC13)δ 3.22 3.42 (m, 4 H), (d, J– 1, Hz, 1H), 6.15 6.22 (dd, J– 1, 2 Hz, 1 H(, 6.52 (d, J– 2 Hz, 1 H), 7.2 7.4 (m, 5 H), MS (70 eV, 130 °C); m/z(% rel. intensity): 208 (84), 179 (32), 147 (85), 115 (100), 103 (48).
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