As manganese is concerned, the use of pincer-type ligands and bifunctional catalysis is crucial in the field of semi-(transfer)hydrogenation of alkynes (Scheme 1, MnI -MnV). However, high selectivity towards E-alkenes and the conversion of alkyl-alkyl substituted alkynes or terminal alkynes with high functional group tolerance remains challenging. In addition, alcohols are potential coordinating ligands towards organometallic complexes which may have limited the use of more environmentally friendly and potentially bio-accessible alcohols as media for nonprecious metal based systems. Therefore, reports of selective semihydrogenations of alkynes are rare. We have recently reported on the application of the Mn(I) alkyl complex fac-[Mn(dippe)(CO)3(CH2CH2CH3)]