Nucleophilic reaction of 1,8-diazabicyclo[5.4.0]undec-7-ene and 1,5-diazabicyclo[4.3.0]non-5-ene with methyl pheophorbide a. Unexpected products
β Scribed by Lifu Ma; David Dolphin
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 541 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0040-4020
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## Abstract CHβaktive Verbindungen 2 lassen sich in Gegenwart von 1,8βDiazabicyclo[5.4.O]undecβ7βen (1) mit den aliphatischen Bromiden 3 glatt dialkylieren. Die Reaktion ist auf Dihalogenverbindungen ΓΌbertragbar und fΓΌhrt zu den Cycloalkylverbindungen 5 und 6 sowie zu den Cyclopentenylverbindungen
Diazabicyclo( 5.4 .0)undec-7-ene. -Treatment of halogen compounds (I) with DBU is investigated in order to obtain fluorinated dienes for cycloaddition reactions. However, the expected products (cf. (II)) are only obtained in the case of aryl substituents. Alkyl, cycloalkyl and alkoxy substituents
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