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Process chemists use the term 'telescoped' for processes in which sequential chemical reactions (that were previously carried out in different solvents) are performed in a single batch of solvent to minimise costly solvent evaporation then recharging.
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In solution, 1,3-disubstituted thioureas can be oxidised to 1,2,4-thiadiazolidines and related heterocycles [see: A. R. Butler and I. Hussain, J. Chem. Res. (S), 1980, 407
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This heterocyclic system could in principle form by extrusion of sulfur from thiaziridine 25 to give a carbodiimide, subsequent condensation with an adjacent thiourea moiety to give a thiocarbamoylguanidine and then oxidative cyclisation (as suggested in solution, see: F. Kurzer and P. M. Sanderson, J. Chem Soc., 1959, 1058
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0002048692
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Thiourea has been used as an odourless alternative to dimethylsulfide during the reductive work-up of alkene ozonolysis reactions. Resin 4 may also be useful in this regard: D. Gupta and R. S. D. Soman, Tetrahedron, 1982, 38, 3013-3018.
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