Intramolecular exclplex formatIon III l\_P-naphthyl-2-N-prpendmoethane m n-butylacetate IS a clear-cut example of groundstate conformational control of a photophysuxd process The conformahonal bamer separatmg the two assembles of molecules is related to the N-mverslon and C-N rotation '"" 500 300 40
Intramolecular exciplex formation in 6-(2',3'-butenyloxy)methyl-1-cyanonaphthalene
โ Scribed by J.J. McCullough; W.Keith Macinnis; David F. Eaton
- Publisher
- Elsevier Science
- Year
- 1986
- Tongue
- English
- Weight
- 546 KB
- Volume
- 125
- Category
- Article
- ISSN
- 0009-2614
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๐ SIMILAR VOLUMES
The condensation of aryl methyl ketones 6 with acetic anhydride 4a in the presence of the boron trifluorideacetic acid adduct 7 gives rise to the formation of 4aryl-2,2-difluoro-6-methyl-1,3,2-(2H)-dioxaborines 8 in satisfactory yields. The stable 4-aryl-2,2-difluoro-6methyl-1,3,2-(2H)-dioxaborines
## Abstract Alkylation of 4,4,6โtrimethylโ2โcyclohexenone (**1**) in toluene in the presence of sodium bis(trimethylsilyl)amide proceeds smoothly to give high yields of compounds **2**. Irradiation (ฮป= 366 nm) of the 6โallylโ4,4,6โtrimethylโ2โcyclohexenones **2aโc** yields mixtures of the isomeric