Junji Toriyama

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The treatment of 1,4-enynes with chlorotriethylsilylacetylene at 130 degrees C in the presence of GaCl3 gave triethynylvinylmethanes by the diethynylation at the allylic methylene moiety. The addition of 2,6-di(tert-butyl)-4-methylpyridine and tert-butyldiphenylsilanol considerably improved the yields of the products by reducing the decompositions of the(More)
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