Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Trimethylstannyl alkanal and alkanone compounds undergo a five- or six-membered carbocyclization or an internal redox process upon activation with select Lewis acids. ... Trimethylstannyl alkanal and alkanone compounds undergo a five- or six-membered carbocyclization or an ...