The method of producing a linear C4 C19 aldehyde comprising reacting {HEAD ~ an anhydrous mixture} comprising a C3 C18 olefin, CO and {TAIL ~ hydrogen} in the presence of a catalyst at from about 100° to about 200° C. at a pressure of from about 500 psi to about 2500 psi and from between 0.5 to about 10 hours wherein said catalyst has the following general formula: 
comprising
The method of producing a linear C4 C19 aldehyde comprising reacting { HEAD ~ an anhydrous mixture } comprising a C3 C18 olefin , CO and { TAIL ~ hydrogen } in the presence of a catalyst at from about 100 ° to about 200 ° C. at a pressure of from about 500 psi to about 2500 psi and from between 0.5 to about 10 hours wherein said catalyst has the following general formula :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH