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Cage compounds. 3. 13C and 1H N.M.R. to characterise symmetrical rearrangement products of 3,6-epoxy pentacyclo[6,2,2,02,7,04,10,05,9]dodecane with sulphuric acid.

✍ Scribed by J. Dekker; J.J. Dekker; L. Fourie; T.G. Dekker; K.G.R. Pachler; P.L. Wessels

Publisher: Elsevier Science
Year: 1976
Tongue: French
Weight: 123 KB
Volume: 17
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)91630-2

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✦ Synopsis

Variaus skeletal rearrarqpsnents of strained Bird-cage rxzqouds te lerssstrufna2 isanersb~e ~rerpartedf. in recent years. We now wish to report that tie title compand (AI2 rearranges on treatment with 95% sulphxxric acAd (neat) at room temperaWxe for 24 hrturs. Tbreeisomeric et&era. 14 _? and 41, with were siegerated by gas chrm_amy3r war* funus& in the ratio 27:3rl. The IR spectra were fras from carbonyl and aloobol absorpzions. The absence& olafin& bonds in 2, 1 and 5 was shown by 1 R and 13C mr.

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Cage compounds IV. 1H and 13C NMR study

Cage compounds IV. 1H and 13C NMR study of 3,6-epoxypentacyclo-[6.2.2.02,7.04,10.05,9]dodecane and 3,6-epoxypentacyclo-[6.2.1.02,7.04,10.05,9]undecane

✍ T. G. Dekker; K. G. R. Pachler; P. L. Wessels; J. Dekker; J. J. Dekker; L. Fouri 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 English ⚖ 408 KB

The use of the selective population inve

The use of the selective population inversion technique in the assignment of carbon-13 n.m.r. resonances in 3,6-epoxy-pentacyclo[6.2.1.02,7.04,10.05,9]undecane

✍ T. G. Dekker; K. G. R. Pachler; P. L. Wessels 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 177 KB

## Abstract Different applications of the selective population inversion technique in an n.m.r. study of 3,6‐epoxypentacyclo‐[6.2.1.0^2,7^.0^4,10^.0^5,9^] undecane have been demonstrated. The intensity gain accompanying heteronuclear ^13^C—{^1^H} experiments allowed the detection of fine structure