Thermolysis of Semicarbazones to the Corresponding Azines Through Reactive N-Substituted Isocyanate Intermediates

doi:10.3390/50400657

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Molecules 2000, 5(4), 657-664; doi:10.3390/50400657

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Thermolysis of Semicarbazones to the Corresponding Azines Through Reactive N-Substituted Isocyanate Intermediates

S. N. Shah* and N. K. Chudgar

Department of Chemistry, Faculty of Science, The M.S.University of Baroda, Baroda 390002, India

* Author to whom correspondence should be addressed.

Received: 3 January 2000; in revised form: 2 April 2000 / Accepted: 4 April 2000 / Published: 7 April 2000

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Abstract: Thermolysis of semicarbazones (I) to azines (II) occurs through reactive N-substituted isocyanate intermediates (Ia) which can be converted in situ to carbamates and Nsubstituted ureas.

Keywords: Thermolysis; Semicarbazones; Azines; N-substituted isocyanates; Mesogenic compounds

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MDPI and ACS Style

Shah, S.N.; Chudgar, N.K. Thermolysis of Semicarbazones to the Corresponding Azines Through Reactive N-Substituted Isocyanate Intermediates. Molecules 2000, 5, 657-664.

AMA Style

Shah SN, Chudgar NK. Thermolysis of Semicarbazones to the Corresponding Azines Through Reactive N-Substituted Isocyanate Intermediates. Molecules. 2000; 5(4):657-664.

Chicago/Turabian Style

Shah, S. N.; Chudgar, N. K. 2000. "Thermolysis of Semicarbazones to the Corresponding Azines Through Reactive N-Substituted Isocyanate Intermediates." Molecules 5, no. 4: 657-664.

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