Abstract
Resonance energies of 430 substituted thiepins have been calculated using a simple Hückel method described before. The results predict that thiepins substituted with electron-withdrawing groups (methoxycarbonyl and fluorine) will be less antiaromatic than the parent thiepin. Thus the calculated REPE of the only known type of monocyclic thiepin viz. 3,4 - bis(methoxycarbonyl) - 5 pyrrolidinothiepin (-0.007β) is less negative than that of the parent thiepin.
Original language | Undefined |
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Pages (from-to) | 2683-2685 |
Journal | Tetrahedron |
Volume | 33 |
Issue number | 20 |
DOIs | |
Publication status | Published - 1977 |
Keywords
- IR-68372