Having unsaturation outside the rings (C07C47/045)

C   Chemistry; metallurgy(318327)
C07   Organic chemistry(61593)
C07C47        Compounds having ; cho groups(815)
C07C47/045                     Having unsaturation outside the rings(4)

The method of obtaining monomeric formaldehyde // 2114817
The invention relates to a method of obtaining from semiformal Monomeric formaldehyde high purity, used as a monomer in the production of high molecular polyacetylenic resins, as well as in the synthesis of numerous organic compounds based on it