## Abstract Two [4.4.3]propellane lactones 3 and 8 were prepared by employing the chloronitrone reaction. The intermediate propellanes 9 and 12 were also isolated in pure form.
Propellanes—XXXIV : Electrophilic reactions of propellanes: attack by carbethoxycarbene
✍ Scribed by A. Rüttimann; D. Ginsburg
- Book ID
- 103395622
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- French
- Weight
- 534 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0040-4020
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## Abstract In contrast to the behavior of 4‐substituted‐1,2, 4‐triazoline‐3, 5‐diones which add to the __syn__‐face of the cyclohexadiene with respect to the hetero‐ring in propellanes of type **1**, dienophiles containing a C, C double bond instead of an N, N double bond add exclusively to the __
The synthesis of [3.3.3]propellanes 18, 19, and 3 bearing one, dibenzo(phenanthro-[1,10]) [3.3.3]propellane 18 in an almost quantitative yield, irrespective of the stereoisomeric two, or three [1,10]-fused phenanthrene units instead of a simple benzene ring has been performed. Starting from composit