Abstract
The cycloadditions of nitrosoketene with formaldehyde, acetone and 2-propenal were calculated using ab initio molecular orbital theory (MP2/6-31G*). The reactions proceed by the [3+2] pathway via a concerted, planar and pseudopericyclic transition state with a significantly lower barrier rather than by the alternative [4+2]. The transition state asynchronicity can be used to explain the substituent effects on the cycloaddition of ketones with nitrosoketene.
Original language | English |
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Pages (from-to) | 5925-5928 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 38 |
Issue number | 34 |
DOIs | |
State | Published - Aug 1997 |