+++Thanks_macro_1 article from Heterocycles

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1,3-Dipolar cycloaddition of pyridinium and diazinium dicyanomethylides with bis(trimethylsilyl)acetylene: synthesis of trimethylsilyl substituted indolizines and bis(trimethylsilyl)acetylene as an acetylene equivalent in 1,3-dipolar cycloaddition
Heterocycles (1983), 20, (6), 1009-12

DOI:

http://dx.doi.org/10.3987/R-1983-06-1009

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http://www.heterocycles.jp/newlibrary/payments/form/10307/PDF

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