中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-芘乙酸 | 1-pyreneacetic acid | 64709-55-3 | C18H12O2 | 260.292 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-芘基乙醛 | 1-pyrenylacetaldehyde | 87337-16-4 | C18H12O | 244.293 |
—— | 4-carbethoxy-4-(1-pyrenyl)butanoic acid | 86803-14-7 | C23H20O4 | 360.409 |
—— | ethyl α-(1-pyrenyl)glutarate | 86803-13-6 | C25H24O4 | 388.463 |
1-芘丁酸 | 1-pyrenebutyric acid | 3443-45-6 | C20H16O2 | 288.346 |
4-芘-1-基丁酸乙酯 | 4-(1-pyrene)butanoic acid ethyl ester | 59275-39-7 | C22H20O2 | 316.4 |
—— | α-(1-pyrenyl)glutaric acid | 86803-20-5 | C21H16O4 | 332.356 |
A new method for the preparation of halocyclobutenes is described. The developed process involves the dehydration of halocyclobutanols by using tetrafluoroboric acid–diethyl ether complex in dichloromethane at room temperature. The process allows for high yields of halocyclobutenes to be achieved by using alcohols that do not trigger the formation of isomeric allylic halides.