Application of the Z-Selective Still–Gennari Olefination Protocol for the Synthesis of Z-α,β-Unsaturated Phosphonates
作者:Ignacy Janicki、Piotr Kiełbasiński
DOI:10.1055/s-0037-1609562
日期:2018.10
Application of the Z-selective Still–Gennari modification of Horner–Wadsworth–Emmons (HWE) reaction for the olefination of acylphosphonates is presented. A series of new Z-α,β-unsaturated phosphonates containing a carbonyl or ester moiety in the β-position were obtained in up to 94% yield and with up to 96% Z-selectivity. The standard HWE olefination of the acylphosphonates, which was performed for comparison
Efficient Syntheses of (α-Fluoropropargyl)phosphonate Esters
作者:Farid Benayoud、Daniel J. deMendonca、Cheryl A. Digits、George A. Moniz、Tanya C. Sanders、Gerald B. Hammond
DOI:10.1021/jo9602027
日期:1996.1.1
Asymmetric Hydrogenation of α,β-Unsaturated Ester- Phosphonates
作者:Yange Huang、Florian Berthiol、Bart Stegink、Michael M. Pollard、Adriaan J. Minnaard
DOI:10.1002/adsc.200900051
日期:2009.6
Abstractmagnified imageThe rhodium‐catalyzed asymmetric hydrogenation of readily available α,β‐unsaturated ester‐phosphonates affords the corresponding α‐chiral phosphonates in excellent yield and ee. The resulting products are useful multifunctional building blocks applied in the synthesis of physiologically active compounds.
Synthesis of New 3-(Dialkoxyphosphoryl)butenoates and Their Enantioselective Hydrogenation
作者:Renat Kadyrov
DOI:10.1055/s-1999-3508
日期:1999.6
Asymmetric Bioreduction of β-Activated Vinylphosphonate Derivatives Using Ene-Reductases
作者:Ignacy Janicki、Piotr Kiełbasiński、Nikolaus G. Turrini、Kurt Faber、Mélanie Hall
DOI:10.1002/adsc.201700716
日期:2017.12.11
thereby providing a stereo‐complementary approach to current asymmetric hydrogenation protocols on similar compounds. Preparative‐scale syntheses performed in aqueous buffer using formate/formate dehydrogenase for recycling of the nicotinamide cofactor granted access to β‐keto‐, cyano‐ and ester phosphonates from the (E)‐isomers of α,β‐unsaturated phosphonates in up to 72% isolated yield and >99% ee.