The reactions of 1-aryl-2-phenyl-4-methylthio-4-secondaryamino / 4-N- allyl-N-aryl amino-1,3-diazabuta-1,3-dienes 1 with butadienylketene leading to a mixture of 5-dienyl pyrimidinones 4 and 5-butenyl pyrimidinones 6 are reported. Tandem [1,5]H and [1,5]SMe shifts are invoked to explain file formation of pyrimidinones 6.
All Science Journal Classification (ASJC) codes
- Drug Discovery
- Organic Chemistry