SEARCH Articles Figures Tables 2- Carbon fragment formation By Formation of Three Bonds from Atom Fragments By Formation of Two Bonds from Atom Fragments Ether formation Fragmentation Formation of Acyclic Fragments by Homodiene Prototropic shift Formation of Two Bonds Atom Fragment by Cycloaddition Formation of Two Bonds Atom Fragment by Other Processes Formation of Two Bonds Four-Atom Fragment and Sulfur Formation via fragmentation Fragment ion formation Fragmentation and Spore Formation Fragmentation free radical formation Fragmentation products formation Pyrolysis of amino acids compared to ion fragments formation Pyrolysis of lignin models compared to ion fragments formation Pyrolysis of saccharides compared to ion fragments formation Ring Syntheses Involving Formation of Two Bonds Fragments Ring fragmentation, formation Secondary products formation fragmentation Sugar fragmentation and free radical formation