## Abstract A further synthetic approach to 2, 5‐trimethylenenorbornane (**1**; tricycle [5.3.0.0^3,9^]decane, 4‐homotwistbrendane), a member of the «adamantaneland», is described starting from methyl 5‐oxo‐2endo‐norbornanecarboxylate (**5**). The required C2‐chain was introduced by a __Wittig‐Horn
The Novel Adamantane Isomer 2,5-Trimethylenenorbornane (Tricycio-[5.3.0.3,9]decane, 4-Homotwistbrendane)
✍ Scribed by Hans-Ruedi Känel; Hans-Georg Capraro; Camille Ganter
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- German
- Weight
- 299 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
A synthesis of the novel C~10~H~16~ hydrocarbon 2,5‐trimethylenenorbornane (tricyclo[5.3.0.0^3,9^]decane, 1), one of the 19 members of the ‘adamantaneland’, and its Lewis‐acid‐catalyzed rearrangement is described.
📜 SIMILAR VOLUMES
Regioselective generation of the C(2)-carbocation a of tricyc10[4.2.2.0',~]decane (1) by treatment of both corresponding epimeric alcohols 5 and 6 with BF, and trapping the rearranged tricy~lo[S.3.0.O~~~]decan-7-yl carhocation b with Et,SiH as hydride-ion donor (ionic hydrogenation) gives the corres
## Abstract The piperidine ring in the title compound is in the chair conformation, whereas the diketopiperazine ring has a boat form. The benzyl group is axially positioned and folded above the diketopiperazine ring. No dimerisation is observed.
## Abstract The reaction of [Mo(CO)~3~(MeCN)~3~] with K~4~Pb~9~ in the presence of 2.2.2‐cryptand (2.2.2‐crypt) has been investigated. The transition metal complex [K(2.2.2‐crypt)]~4~[(η^5^__‐__Pb~9~)Mo(CO)~3~] (1), which contains a Pb~9~^4–^ Zintl anion coordinated by Mo in an η^5^‐fashion, is iso
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