Add time:09/28/2019 Source:infona.pl
For the first time cycloalumination of methylenecyclobutane with the aid of Et 3 Al in the presence of Cp 2 ZrCl 2 leading to 6-ethyl-6-aluminaspiro[3.4]octane has been realized. The latter, without isolation, was converted into spiro[3.3]heptane, 6-thiaspiro[3.4]octane and also spiro[3.4]octan-6-ol and 6-spiro[3.4]octyl formate with high yields and selectivity.
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