1,9-DECADIYNE
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1,9-DECADIYNE ??
- ???
- -6.35°C (estimate)
- ?? ?
- 80-81 °C (10 mmHg)
- ??
- 0.822
- ???
- 1.449-1.453
- ???
- 60°C
- ?? ??
- Flammables area
- ??? ??
- ??
- ??
- ?? ???
- Specific Gravity
- 0.816
- ???
- ?? ???.
- BRN
- 1734594
- CAS ??????
- 1720-38-3(CAS DataBase Reference)
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- ?? ? ???? ?? (GHS)
1,9-DECADIYNE C??? ??, ??, ??
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Clear yellow liquid??
One-step synthesis of carbametacyclophane 3 from 1,9-decadiyne and diethyl acetylenedicarboxylate is described. The use of 1,9-decadiyne as a nucleophile led only to the monoalkynylation product, a selectivity that would be difficult to achieve with a catalytic in situ metalation process. 1,9-decadiyne reacts with iodobenzene (excess) to afford the bis-Sonogashira coupling product in excellent yield. 1,9-Decadiyne was dihydrated and gave 2,9-decanedione in 92% yield.1,9-DECADIYNE ?? ?? ? ???
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1,9-DECADIYNE ?? ??
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1,9-DECADIYNE ?? ??:
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