(E,E)-1,4-Distyrylbenzene and Its Bisepoxy, Bis(dihydroxy), and Bis(dichloromethylene) Derivatives; Russian Journal of Organic Chemistry; Vol. 34, iss. 1
| Parent link: | Russian Journal of Organic Chemistry.— , 1965- Vol. 34, iss. 1.— 1998.— P. 81-85 |
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| Автор: | |
| Інші автори: | , |
| Резюме: | Convenient preparative methods for indirect epoxidation and dichlorocyclopropanation of the two exocyclic double bonds in (E,E)-1,4-distyrylbenzene have been proposed. The procedure for epoxidation includes conjugate electrophilic bromination of (E,E)-1,4-distyrylbenzene with N-bromosuccinimide in formic acid, followed by treatment of the addition products with alkali under conditions of phase-transfer catalysis. The procedure also applies to styrene and stilbene derivatives. Dichlorocyclopropanation of (E,E)-1,4-distyrylbenzene smoothly occurs on heating in chloroform in the presence of alkali with no phase-transfer catalyst. В фонде НТБ ТПУ отсутствует |
| Мова: | Англійська |
| Опубліковано: |
1998
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| Предмети: | |
| Формат: | Частина з книги |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=596250 |
| Резюме: | Convenient preparative methods for indirect epoxidation and dichlorocyclopropanation of the two exocyclic double bonds in (E,E)-1,4-distyrylbenzene have been proposed. The procedure for epoxidation includes conjugate electrophilic bromination of (E,E)-1,4-distyrylbenzene with N-bromosuccinimide in formic acid, followed by treatment of the addition products with alkali under conditions of phase-transfer catalysis. The procedure also applies to styrene and stilbene derivatives. Dichlorocyclopropanation of (E,E)-1,4-distyrylbenzene smoothly occurs on heating in chloroform in the presence of alkali with no phase-transfer catalyst. В фонде НТБ ТПУ отсутствует |
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