A criterion for systematization of organic compounds is described. Organic (estimated to 16-20 millions) are three types: (A) symmetric (especially meso and C2 symmetric), (B) possible symmetry generators, i.e. possessing a real or imaginary, but plausible, correspondent: irrechi (from irregular distribution chiral carbons) constitutional), (C) archaic (or primitive) that neither nor generators...

The first successful asymmetric transfer of rhodium-alkynyl species to symmetrical strained alkenes has been realized starting from bicyclic hydrazines and alkynylboronic esters.