83110-01-4Relevant academic research and scientific papers
Enantioselective and Regioselective Hydroetherification of Alkynes by Gold-Catalyzed Desymmetrization of Prochiral Phenols with P-Stereogenic Centers
Zheng, Yin,Guo, Linna,Zi, Weiwei
supporting information, p. 7039 - 7043 (2018/11/24)
The gold(I)-catalyzed enantioselective hydroetherification of alkynes was achieved via desymmetrization of prochiral bisphenols bearing P-stereogenic centers. (S)-DTBM-Segphos(AuCl)2/AgNTf2 proved to be a highly efficient catalyst system for this transformation, affording P-chiral cyclic phosphine oxides in good yields with high enantioselectivities (with up to 99% ee). The same catalyst system allowed for the enantioselective desymmetrization of dialkynes. Synthetic transformations of the cyclization products afforded other P-chiral molecules with high enantiospecificity.
SYNTHESIS AND SUBSTITUENT EFFECT ON 31P NMR CHEMICAL SHIFT OF ORTHO-HYDROXYARYL DIALKYL PHOSPHINE OXIDES
Li, Shusen,Wang, Guoquan
, p. 119 - 129 (2007/10/02)
In this paper, the synthetic methods for the preparation of o-hydroxyaryl dialkyl phosphine oxides (1) are introduced.The title compounds with low bulky substituent are synthesized successfully by the reactions of Grignard reagents with diethyl o-hydroxya
1,3-CARBANIONISCHE UMLAGERUNGEN: REAKTIONEN VON PHOSPHORSAEURE-o-HALOARYLESTERN MIT METALLEN ZU ARYLPHOSPHONSAEUREDERIVATEN
Heinicke, J.,Boehle, I.,Tzschach, A.
, p. 11 - 22 (2007/10/02)
o-Bromoaryl esters of phosphoric acid react with magnesium to give arene phosphonic acid derivatives via intermediate Grignard compounds.Similar metallation rearrangement processes may be achieved in the case of o-chloroaryl esters if sodium is applied as
1,3-BENZOXAPHOSPHOLE-HETEROCYCLEN MIT PHOSPHOR DER KOORDINATIONSZAHL 2
Heinicke, J.,Tzschach, A.
, p. 345 - 356 (2007/10/02)
The title compounds are formed in the reaction of o-phosphinophenole with N-arylimide chlorides of carbonic acids.The primary adducts of formimmonium chlorides, however, undergo -cycloaddition to furnish 1,3-diphosphetanes.A further way to 1,3-benzox
Chemistry of the Podocarpaceae. LXI. The Rearrangement of Aryl Phosphates to ortho-Hydroxyaryl Phosphanates
Cambie, Richard C.,Palmer, Brian D.
, p. 827 - 837 (2007/10/02)
Treatment of methyl 12-(diethoxyphosphoryloxy)podocarpa-8,11,13-trien-19-oate (14) or its 13-bromo derivative (7) with butyllithium effects a rearrangement of the phosphate group to give methyl 13-diethoxyphosphoryl-12-hydroxypodocarpa-8,11,13-trien-19-oa
