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Push-pull alkenes by reacting N,N′-dimethyl cyclic ketene N,N′-acetals with isocyanates: synthesis, structures, and reactivities |
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| Authors: | Guozhong Ye Chunlong Chen Charles U. Pittman Jr. |
| Affiliation: | a Department of Chemistry, Mississippi State University, Mississippi State, MS 39762, USA b Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA c School of Pharmacy, University of Wisconsin-Madison, WI 53705, USA |
| Abstract: | N,N′-Dimethyl cyclic ketene N,N′-acetals react with two or three equivalents of isocyanates to generate tetrasubstituted push-pull alkene derivatives in one-pot sequential reactions. X-ray crystallography showed significant elongations and out of plane distorsions of the polarized carbon-carbon double bonds. |
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