Two routes for the preparation of 2-methyl-5-t-butylfuran have been investigated; the reactions of tetrafluoro-benzyne with this furan and with 2-methyl- and 2,5-dimethyl-furan afforded the anticipated derivatives of 1,4-epoxy-5,6,7,8-tetrafluoro-1,4-dihydronaphthalene. The methyl-substituted adducts were elaborated, with butadiene, to give 9-methyl- and 9,10-dimethyl-1,2,3,4-tetrafluoro-5,6,7,8-t
已经研究了制备
2-甲基-5-叔丁基呋喃的两种途径。
四氟苯并with与该
呋喃以及2-甲基和
2,5-二甲基呋喃的反应得到了预期的1,4-环氧-5,6,7,8-四
氟-1,4-二氢
萘衍
生物。用
丁二烯精制甲基取代的加合物,得到9-甲基-和9,10-二甲基-1,2,3,4-四
氟-5,6,7,8-四氢
蒽。与四
氟苯并呋喃的进一步反应,然后脱氢,得到标题化合物。