Yan, Liping; Yan, Chenting; Xu, Jian; Yang, Lele; Bian, Gaofeng; Wang, Liliang; Kira, Mitsuo; Li, Zhifang published an article in 2021. The article was titled 《Diverse reactions of a fluorostannylenoid towards ethynes》, and you may find the article in Dalton Transactions.Application of 623-47-2 The information in the text is summarized as follows:
Fluoro(dialkyl)stannylenoid 2 exhibits unique reactivity towards ethynes with acetylenic H and those with trimethylsilyl groups, though the corresponding free dialkylstannylene 1 is inactive against those ethynes. Stannylenoid 2 reacts smoothly with gaseous ethyne and phenylethyne at room temperature, giving the corresponding diethynylstannanes, di(phenylethynyl)stannane 3 and diethynylstannane 6, resp., in good yields with the concomitant evolution of H2. Trimethylsilyl-substituted ethynes such as 1-trimethylsilyl-(2-phenyl)ethyne and 1,2-bis(trimethylsilyl)ethyne react similarly to give 3 and bis(trimethylsilylethynyl)stannane 8, resp. Rather unexpectedly, the reaction of 2 with (trimethylsilyl)ethyne affords 1,2-bis(ethenylstannyl)ethyne 7 in a good yield. The reactions of 2 with Me and Et propynoates give the same products 4 and 5 as those obtained during the reaction of dialkylstannylene 1 without CsF. Pathways involving the nucleophilic attack of Cs acetylide to an ethyne-complexed stannylene are proposed, while the detailed mechanisms remain unknown. The structure of 7 was studied by single crystal x-ray diffraction anal. In the experimental materials used by the author, we found Ethyl propiolate(cas: 623-47-2Application of 623-47-2)
Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Application of 623-47-2
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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics