Resolution of Chiral Phosphate, Phosphonate, and Phosphinate Esters by an Enantioselective Enzyme Library
作者:Charity Nowlan、Yingchun Li、Johannes C. Hermann、Timothy Evans、Joseph Carpenter、Eman Ghanem、Brian K. Shoichet、Frank M. Raushel
DOI:10.1021/ja0658618
日期:2006.12.1
phosphotriesterase and 15 mutant enzymes. For each substrate, the leavinggroup was 4-hydroxyacetophenone while the other two groups attached to the phosphorus core consisted of an asymmetric mixture of methyl, methoxy, ethyl, ethoxy, isopropoxy, phenyl, phenoxy, cyclohexyl, and cyclohexoxy substituents. For the wild-type enzyme, the relative rates of hydrolysis for the two enantiomers ranged from 3 to 5.4 x 10(5)
PROCESS FOR PRODUCING PHOSPHORUS-CONTAINING CYANOHYDRIN ESTERS
申请人:BAYER CROPSCIENCE AKTIENGESELLSCHAFT
公开号:US20180244702A1
公开(公告)日:2018-08-30
The present invention primarily relates to a process for producing certain phosphorus-containing cyanohydrin esters of formula (I) and the use thereof for producing glufosinate/glufosinate salts. The present invention further relates to a process for producing glufosinate/glufosinate salts.
New Organohypervalent Iodine Reagents for α-Methylphosphonylations and α-Diphenyl- and α-Dimethylphosphinylations
作者:Robert M Moriarty*、Cristian Condeiu、Anping Tao、Om Prakash
DOI:10.1016/s0040-4039(97)00388-2
日期:1997.4
[Hydroxy(((phenoxy(methyl)phosphoryl)oxy)iodo]benzene (1), [hydroxy(((diphenyl)phosphory)oxy)-iodo]benzene (2) and [hydroxy(((dimethyl)phosphoryl)oxy)iodo]benzene (3), obtained from the reaction of iodosobenzene with phenyl methylphosphonic acid, diphenyl- and dimethylphosphinic acid, respectively, effect the introduction of the corresponding phosphonate or phosphinate groups α- to ketone and ester
THE ATTEMPTED SYNTHESIS OF TWO HEXOSE PHOSPHONATE ESTERS
作者:F. C. G. Hoskin
DOI:10.1139/v57-083
日期:1957.7.1
The synthesis of glucose-1-methylphosphonate and isopropyl glucose-1-methylphosphonate has been attempted. Although the intermediates were successfully prepared, deacetylation failed to give the desired products.
Mechanism and Transition State Structure of Aryl Methylphosphonate Esters Doubly Coordinated to a Dinuclear Cobalt(III) Center
作者:Guoqiang Feng、Eric A. Tanifum、Harry Adams、Alvan C. Hengge、Nicholas H. Williams
DOI:10.1021/ja904134n
日期:2009.9.9
to that of a phosphate monoester complex with the same leaving group, rather than the isoelectronic diestercomplex. The data from these model systems parallel the observation that in protein phosphatase-1, which has an active site that resembles the structures of these complexes, the catalyzed hydrolysis of aryl methylphosphonates and aryl phosphates are much more similar to one another than the uncomplexed