Preparation of Asymmetric PTC, tBu-Bisguaninidium CatalystTCHLabSep 17, 20201 min readFull Text Available at: http://orgsyn.org/Content/pdfs/procedures/v97p0274.pdf
A chiral pentanidium and pyridinyl-sulphonamide ion pair as an enantioselective organocatalyst for Steglich rearrangement
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