Complex sentence: On the other hand, a close analog of this reaction, N-cyclo "hex" enyl pyrrolidine 1,3-dipolar cycloaddition to dimethyl diazomalonate, is sped up only 41-fold in DMSO relative to decalin.
Split into simpler sentences: On the other hand, a close analog of this reaction, N-cyclo "hex" enyl pyrrolidine adds to dimethyl diazomalonate in the 1,3-dipolar cycloaddition manner. This reaction is sped up only 41-fold in DMSO relative to decalin.