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Synthèse du tétraéthoxycarbonyl-1,1,6,6-cyclodécadiyne-3,8 |
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| Authors: | Alain Etournaud Hugo Wyler |
| Abstract: | A cyclisation of 1-bromo-5,5,10,10-tetraethoxycarbonyl-2,7-decadiyne ( 9b ) using NaH in dilute solution gives 1,1,6,6-tetraethoxycarbonyl-cyclodeca-3,8-diyne ( 8 ) in 17,6% yield. 9b is prepared by condensation of 1,1,6,6-tetraethoxycarbonyl-3-hexyne with 1,4-dibromo-2-butyne. |
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