Enzymes in organic synthesis. 48. Pig liver esterase and porcine pancreatic lipase catalyzed hydrolyses of 3,4-(isopropylidenedioxy)-2,5-tetrahydrofuranyl diesters
摘要:
Pig liver esterase (PLE) and porcine pancreatic lipase (PPL) catalyzed hydrolyses of 2,5-bis(methoxycarbonyl) and 2,5-bis(acetoxymethyl) meso-diester derivatives of 3,4-(isopropylidenedioxy) tetrahydrofuran proceed with enantiotopic selectivity to give monoester products of up to 72% ee. Transesterification of the 2,5-bis(hydroxymethyl) derivative with trifluorethyl laurate promoted by PPL in ether also proceeds stereoselectively but in the opposite stereochemical sense from the hydrolysis of the corresponding diacetate. The data provide further examples of heteroatom and ester moiety induced reversals of stereoselectivity for the two enzymes.
Seelig, Chemische Berichte, 1879, vol. 12, p. 1085
作者:Seelig
DOI:——
日期:——
Hill; Wheeler, American Chemical Journal, 1901, vol. 25, p. 463,466, 474, 480
作者:Hill、Wheeler
DOI:——
日期:——
Schroetter, Monatshefte fur Chemie, 1888, vol. 9, p. 443
作者:Schroetter
DOI:——
日期:——
Enzymes in organic synthesis. 48. Pig liver esterase and porcine pancreatic lipase catalyzed hydrolyses of 3,4-(isopropylidenedioxy)-2,5-tetrahydrofuranyl diesters
作者:Philip G. Hultin、Franz Josef Mueseler、J. Bryan Jones
DOI:10.1021/jo00018a033
日期:1991.8
Pig liver esterase (PLE) and porcine pancreatic lipase (PPL) catalyzed hydrolyses of 2,5-bis(methoxycarbonyl) and 2,5-bis(acetoxymethyl) meso-diester derivatives of 3,4-(isopropylidenedioxy) tetrahydrofuran proceed with enantiotopic selectivity to give monoester products of up to 72% ee. Transesterification of the 2,5-bis(hydroxymethyl) derivative with trifluorethyl laurate promoted by PPL in ether also proceeds stereoselectively but in the opposite stereochemical sense from the hydrolysis of the corresponding diacetate. The data provide further examples of heteroatom and ester moiety induced reversals of stereoselectivity for the two enzymes.