Dendro-Isomers

Selective formation and elimination of sulphonamides permit synthesis of constitutional isomers ( dendro isomers ) of dendritic architectures of the kind shown in Fig. 2.20. 

They have the same molecular mass, but differ in their manner of linkage, their branching, and in the order (sequence) of their atoms (constitutional isomers). The number of possible isomers increases rapidly in higher generations - by analogy with the classical case of the alkanes. 

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Fig. 2.20 Dendro-isomers - with four end groups (according to Lukin et al.). Left schematic right specific example...

Fig. 2.21 Dendro-isomers - with eight (left) and ten end groups (right according to Lukin et a .) melting points are given as examples for the isomers with eight end groups...

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