Synthesis of 1 cyclohept 1 2 dien 1 yl benzene from 1 2 iodo chlorocyclohept 1 en 1 yl benzene and 1 2 iodo chlorocyclohept 2 en 1 yl benzene Its trapping with diphenylisobenzofuran
Yazarlar (5)
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Yakup BUDAK
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | Turkish Journal of Chemistry |
| Dergi ISSN | 1300-0527 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI |
| Dergi Grubu | Q4 |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2006 |
| Cilt No | 30 |
| Sayı | 6 |
| Sayfalar | 663 / 672 |
| Özet |
| The key compounds vinyl iodides 12a and 13a, for the generation of 1-cyclohept-1,2-dien-1-ylbezene (1), were synthesizedf rom cycloheptanone (5). Bromobenzene was convertedt o the Grignardreagen t, which was condensed with 5. Dehydration of alcohol 6 gave alkene 7. Hydroboration of 7 followedb y oxidation with PCC afforded ketone 9, which was convertedt o hydrazone 10. Treatment of 10 with iodine resulted in the formation of 12a and 13a. The other precursors, 12b and 13b, were synthesized from the reaction of 9 with $PCl_5$. Reactions of 12a, b and 13a, b with KOtBu in a sealedt ube at 185 ◦C gave the [2+4] and [2+2] dimer products 20 and 21, respectively. In addition, reactions of 12a, b and 13a, b with KOtBu under the same conditions in the presence of diphenylbenzoisofuran (DBI) as a trapping reagent afforded the [2+4] cycloadducts 24 and 25 in goody ields. |
| Anahtar Kelimeler |
| substituted cyclic allene | dehydroiodination | dehydrochloration | dimerization | cycloaddition |
