摘要:
The present invention provides a catalyst system and a process for the preparation of a nonracemic chiral alcohol by hydrogenation of a ketone using the catalyst system, wherein the catalyst system comprises ruthenium, a nonracemic nonatropisomeric chiral diphosphine ligand, an achiral diamine ligand, and a base.
摘要:
The present invention provides a process for the preparation of a nonracemic diastereomer of 1-(4-benzoxy-phenyl)-2-(4-hydroxy-4-phenyl-piperidin-1yl)-1-propanol by hydrogenation of a corresponding nonracemic 1-(4-benzoxy-phenyl)-2-(4-hydroxy-4-phenyl-piperidin-1-yl)-1-propanone using a catalyst system comprising ruthenium, a nonracemic diphosphine ligand, a bidentate amine ligand selected from amino-thioethers and achiral diamines, and a base.
摘要:
the present invention provides a process for the preparation of a nonracemic diastereorner of 1-(4-benezoxy-phenyl)-2-(4-hydroxy-4-phenyl-piperidin-1-yl)-1-propanol by hydrogenation of a corresponding noracemic 1-(4-benzoxy-phenyl)-2-(4-hydroxy-4-phenylpiperidin-1-yl)-1-1-propane using a catalyst system comprising ruthenium, a nonracemic diphosphine ligand, a bidentate amine ligand selected from amino-thioethers and achiral diamines, and a base.
摘要:
the present invention provides a process for the preparation of a nonracemic diastereorner of 1-(4-benezoxy-phenyl)-2-(4-hydroxy-4-phenyl-piperidin-1-yl)-1-propanol by hydrogenation of a corresponding noracemic 1-(4-benzoxy-phenyl)-2-(4-hydroxy-4-phenylpiperidin-1-yl)-1-1-propane using a catalyst system comprising ruthenium, a nonracemic diphosphine ligand, a bidentate amine ligand selected from amino-thioethers and achiral diamines, and a base.
摘要:
The present invention provides a catalyst system and a process for the preparation of a nonracemic chiral alcohol by hydrogenation of a ketone using the catalyst system, wherein the catalyst system comprises ruthenium, a nonracemic chiral diphosphine ligand, a bidentate amine ligand, and an organic base selected from alkylamidines, alkylguanidines, aminophosphazenes, and proazaphosphatranes.
摘要:
The present invention provides a catalyst system and a process for the preparation of a nonracemic chiral alcohol by hydrogenation of a ketone using the catalyst system, wherein the catalyst system comprises ruthenium, a nonracemic chiral diphosphine ligand, an amino-thioether ligand, and a base.