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- W2054178977 abstract "Die kinetisch kontrollierte Deprotonierung des Pyranons 1 sowie des Pyranimins 3 erfolgt bevorzugt in 4-Position des Pyranringes. Diese Orientierung wird in noch stärkerem Maße unter thermodynamischer Kontrolle beobachtet. Die Regioselektivitäten werden mit denen früher untersuchter Pyranenamine 8–11 und -silylenolether 7 verglichen, Faustregeln für die Bildung der Regioisomere vorgeschlagen. Tetrahydropyran-3-one: Regioselectivity in the Formation of Reactive Intermediates Kinetically controlled deprotonations of tetrahydropyranone 1 and tetrahydropyranimine 3 occur preferentially at position 4 of the pyran ring. The same orientation is even more preferred under thermodynamic control. The regioselectivities are compared with those of the earlier investigated dihydropyranamines 8–11 and of the silyl enole ether 7. A rule of thumb for the ratio of regioisomers is proposed." @default.
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- W2054178977 date "1988-01-01" @default.
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- W2054178977 title "Tetrahydro-3-pyranon: Regioselektivität bei der Bildung reaktiver Intermediate" @default.
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- W2054178977 doi "https://doi.org/10.1002/ardp.19883210208" @default.
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