Synthesis of chiral olefins by the Wittig reaction.
✍ Scribed by Piero Salvadori; Sergio Bertozzi; Raffaello Lazzaroni
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- French
- Weight
- 195 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0040-4039
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Thp Wittig synthesis has been used to prepare conveniently carbon-14 labeled 1-olejh in the Cs to c 8 range in about 60 % yield. Thp chemicd and radiochemical purities of the products exceeded 99.5 %, The common source of carbon-14 in these reactions was methyl-14C-triphenylphosphonium iodide which
## Abstract A convenient synthesis of the strained methylene‐bridged __trans__‐cyclooctenes bicyclo[3.3.1]‐1 (2)‐nonene **(1)**, bicyclo[4.2.1]‐1(8)‐nonene **(2)**, and bicyclo[4.2.1]‐1(2)‐nonene **(3)** by the intramolecular __Wittig__ reaction is described (see __Schemes 1–4__). The (3‐oxocycloal
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