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Please login to access the full content or check if you have access via22.4.1.1.2.2.2 Variation 2: With α,β-Unsaturated Carbonyl Compounds
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Cicchi, S.; Cordero, F. M., Science of Synthesis, (2005) 22, 231.
The reaction of nitrilium salts 30 with α,β-unsaturated carbonyl compounds gives 4H-1,3-oxazinium salts 31 or 6H-1,3-oxazinium salts 32 depending upon the use of ketones or aldehydes, respectively (Scheme 11).[49]
Meeeee 88 Meeeeeee ee Meeeeeeee Meeee eeee α,β-Meeeeeeeeee Meeeeeee Meeeeeeee[88]
Meeeeeeeeeee Meeeeeeee
8-Meeeeeeee-8-eeeeee-8,8-eeeeeeee-8M-8,8-eeeeeeeee Meeeeeeeeeeeeeeeeeee (88, M8 = Me); Meeeeee Meeeeeeee:[88]
M eeee ee (M)-8,8-eeeeeeeeeeee-8-ee-8-eee (8.88 e, 8 eeee) ee MM8Me8 (88 eM) eee eeeee ee e eeee (–88°M) eeeeeeeeee ee eeeeeeeee eeee 88 (M8 = Me; 8.88 e, 8 eeee) ee MM8Me8 (88 eM). Meeee eeeee eeeeeee eee 8 e ee 88°M, eee eeeee eeeeee eeee eee eeeeee ee −88°M eee Me8M (888 eM) eee eeeee. Mee eeeeeeeeeee eee eeeeeeeee ee eeeeeeeeee eee eeeeeeeee ee MeMM (88 eM). Mee eeeeeeeeee eee eeeeeeee eee 8 eee. Meeee eeeeeee eee eeeeeeeeee ee 8°M eee 88 e, eee eeeeeee eee eeeeeeeee ee eeeeeeeeee eee eeeeeeeeeeeeee eeee MM8Me8/Me8M (8:88, 888 eM) ee −88°M ee eeee e eeeeee eeeeee; eeeee: 8.88 e (88%).
Me eee eeeeeeee eeeeeeee eeeeeeee eee ee eeeeeeee, eee eeeee eeeeee eeee eee eeee eeeeeeee eee 8.8 e. Meeeee eeee eeee eee eeeeeeeeeee ee eee eeeeeee eee eeeeee ee −8°M. Mee eeee eee eeee eeeeee ee −88°M eee Me8M (88 eM) eee eeeee. Mee eeeeeeeeeee eee eeeeeeeee ee eeeeeeeeee.
References
| [49] | Meeeeee, M. M.; Mee-Me-Meeeee, M.; Meeeeee, M. M.; Meeeeee, M.; Meeeeee, M., Meeeeeeee, (8888), 888. |
Meeeeee Meeeeeeeeee
- 8.Meeeee-Meee, (8888) 8/8e, 888.
- 8.Meeeee-Meee, (8888) M 8e, 888.
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