Synthetic and structural studies on 1,2,4-dithiazolidine-3,5-dione derivatives
作者:Mark E. Wood、Daniel J. Cane-Honeysett、Michael D. Dowle、Simon J. Coles、Michael B. Hursthouse
DOI:10.1039/b305096c
日期:——
Methods have been developed for the N-alkylation of 1,2,4-dithiazolidine-3,5-dione 2 and the subsequent conversion of the N-alkylated derivatives into isocyanates 5. An extension of this methodology onto a solid-support is also reported. X-ray crystallographic analysis has been carried out on potassium 1,2,4-dithiazolidine-3,5-dione 3 for structural comparison with the parent heterocycle 2.
1,2,4-Dithiazolidine-3,5-dione as an isocyanate equivalent in the Mitsunobu reaction
作者:Mark E. Wood、Daniel J. Cane-Honeysett、Michael D. Dowle
DOI:10.1039/b206793e
日期:2002.9.11
1,2,4-Dithiazolidine-3,5-dione 1 can be used as a nitrogen nucleophile in a modified Mitsunobu procedure to give N-alkylated products 2 which can be converted via isocyanates, into amine derivatives, under very mild conditions.