Hetero Diels-Alder reactions of acyl phosphonates: Synthesis of glycosyl type phosphonates
We have prepared glycosyl type phosphonates via hetero Diels-Alder (HDA) reactions of acyl phosphonates with electron rich dienes. HDA reactions of acyl phosphonates with Danishefsky's diene required thermal activation to yield the desired dihydropyranone
Polat-Cakir, Sidika,Demir, Ayhan S.
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p. 2396 - 2401
(2011/04/26)
Reactions of acyl phosphonates with organoaluminum reagents: A new method for the synthesis of secondary and tertiary α-hydroxy phosphonates
The reactions of organoaluminum reagents (trimethylaluminum, triethylaluminum, etc.) with aryl and alkyl acyl phosphonates, which lead to the formation of α-hydroxy phosphonates in moderate to good yields, are reported. This method provides easy access to
Seven, Ozlem,Polat-Cakir, Sidika,Hossain, Md. Shakhawoat,Emrullahoglu, Mustafa,Demir, Ayhan S.
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p. 3464 - 3469
(2011/06/19)
Dialkyl phosphonates and tetraalkyl bis(phosphonate)s from the decomposition of quasi-phosphonium ylidic phosphonates in aqueous conditions
The reaction of dimethyl benzoylphosphonates 1 (X = 2-halogen or 2-CF3O) with trialkyl phosphite leads to the formation of carbene intermediates 3 which are trapped by trialkyl phosphite to give the corresponding ylidic phosphonates 4. In acidi
Griffiths, D. Vaughan,Karim, Khalku,Harris, Jayne E.
p. 2539 - 2544
(2007/10/03)
Asymmetric Synthesis of Chiral, Nonracemic Dialkyl α-Hydroxyarylmethyl- and α-, β- and γ-Hydroxyalkylphosphonates from Keto Phosphonates
The enantioselective synthesis of α-hydroxyarylmethylphosphonates 2a-p by the oxazaborolidine-catalyzed reduction of α-keto phosphonates 1a-p using different boranes 4a-c was studied in detail.Moderate to good enantioselectivities are found (up to 80perce
Meier, Chris,Laux, Wolfgang H. G.,Bats, Jan W.
p. 1963 - 1980
(2007/10/03)
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