Aromatisation in adducts of alpha-terpinene: Influence of hindered internal rotations
JOURNAL OF CHEMICAL RESEARCH, sa.9, ss.540-544, 2011 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2011
- Doi Numarası: 10.3184/174751911x13155890649111
- Dergi Adı: JOURNAL OF CHEMICAL RESEARCH
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.540-544
- Atatürk Üniversitesi Adresli: Evet
Özet
Each adduct of alpha-terpinene with p-quinone and 1,4-naphthoquinone in Ac(2)O/Et(3)N at 180 C gives two aromatic products, one of which had a distinctive smell formed by the loss of an ethylene group. Here, we report the crystal structure of (1RS, 4RS)-1-isopropyl-4-methyl-1,4-dihydro-1,4-ethanoanthracene-9,10-diyl diacetate. It is crystallised in an orthorhombic space group, Pbca, with cell dimensions a = 10.2899(7), b = 19.7804(9), c = 19.7519(8) angstrom and Z = 8. According to its NMR and X-ray diffraction data, the isopropyl and acetate groups slowly rotate.