Selective Acceptorless Conversion of Primary Alcohols to Acetals and Dihydrogen Catalyzed by the Ruthenium(II) Complex Ru(PPh₃)₂(NCCH₃)₂(SO₄)

Abstract

The complex bis(acetonitrile)bis(triphenylphosphine)ruthenium(II) sulfate

Graphitic carbon nitride catalysed photoacetalization of aldehydes/ketones under ambient conditions

“…It is interesting to note that, for substrates with βhydrogens, the photoacetalization reaction may also undergo vinyl ether intermediate (Scheme S1 of ESI), which upon the addition of alcohol to C=C bond will produce acetal. 28,36 Indeed, we observed trace of vinyl ether species for 11, 12 to corresponding acetals. 28…”

Catalytic Conversion of Ethanol into an Advanced Biofuel: Unprecedented Selectivity for n‐Butanol

“…Ruthenium systems have a good track record in borrowed‐hydrogen chemistry7a and related dehydrogenation reactions, such as hydrogen production from alcohols7b,c and the synthesis of ethyl acetate 7d–f. For our initial catalyst screening, we used [{RuCl 2 (η 6 ‐ p ‐cymene)} 2 ] as a catalyst precursor with two molar equivalents (Ru/L 1:1) of the inexpensive, commercially available bidentate phosphine ligand 1,3‐bis(diphenylphosphanyl)propane ( 1 ), 1,2‐bis(diphenylphosphanyl)ethane ( 2 ), or bis(diphenylphosphanyl)methane ( 3 ; Scheme ) and sodium ethoxide as the base (Table 1).…”

Advances in Ruthenium Catalysed Hydrogen Release from C1 Storage Materials

“…Improvements to the conditions required for dehydrogenation [70][71][72][73] and acetylation [74] reactions have been made along with noteworthy improvements in the synthetic versatility of the reactions [75,76].…”