Formation of linear aldehydes starting from internal alkenes

2 Formation of linear aldehydes starting from internal alkenes. 

For lower alkenes such as 2-butenes UCC has achieved high contents of linear products (see Table 2). Bryant reported 74% selectivity for the formation of linear pentanal by hydrofonnylation of 2-butene using the rhodium bulky diphosphite catalyst [22, 23]. 

Similar results were obtained using the UCC systems in several patents the reported yields for dialdehyde in the hydro formylation of butadiene were 

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