Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1258070 | Chinese Chemical Letters | 2009 | 4 Pages |
Abstract
Calix[4]-crown-5-sulfonyl cyclothiourea derivatives 6 and 7 were synthesized from calix[4]-crown-5-monosulfonylethylenediamine derivatives 4 and 5 and carbon disulfide through nucleophilic addition and subsequent cyclization of intramolecule at room temperature in aqueous solution. The advantages of the novel protocol are the mild reaction condition, free organic solvent, simple final treatment, easy isolation of products and excellent yields.
Related Topics
Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Cong Wen Ding, Ming Jie Zhang, Ning Ma,