General approach for the synthesis of polyquinenes via the weiss reaction XII. The chugaev approach to ellacene (1,10-cyclododecanotriquinancene)
作者:Xiaoyong Fu、James M. Cook
DOI:10.1016/s0040-4039(00)97409-4
日期:1990.1
The synthesis of ellacene (1,10-cyclododecanotriquinancene) 2 has been achieved via the Weissreaction. The regiospecific monoallylation of 6 to provide 7, and the pyrolysis of tris xanthate 11 in HMPA at 220°C to furnish 2 represent the key steps in the sequence. The HMPA-mediated dehydration of triol 10 to form the ethers 12 and 13 in preference to the desired 2 has also been observed.