36213-33-9Relevant academic research and scientific papers
Hydrophosphination of Activated Alkenes by a Cobalt(I) Pincer Complex
Nolla-Saltiel, Roberto,Geer, Ana M.,Taylor, Laurence J.,Churchill, Olivia,Davies, E. Stephen,Lewis, William,Blake, Alexander J.,Kays, Deborah L.
, p. 3148 - 3157 (2020/06/08)
Herein we report the synthesis of three heteroleptic first-row transition metal(II) complexes containing carbazolido NNN pincer ligands and conversion to the corresponding metal(I)-carbonyl complexes via a reductive carbonylation route. These complexes are precatalysts for the hydrophosphination of activated alkenes, affording a cobalt-catalysed hydrophosphination process that solely and selectively yields the β addition (anti-Markovnikov) product. The scope of this transformation has been investigated using a variety of activated alkenes. Isolation and characterisation of substrate-coordinated intermediates reveal available coordination sites, which provide insight into the proposed catalytic cycle. (Figure presented.).
Potassium carbonate promoted nucleophilic addition of alkenes with phosphites
Huang, Zhenjun,Liu, Wei,Li, Sen,Yang, Yutian,Guo, Shengmei,Cai, Hu
supporting information, p. 1295 - 1297 (2020/08/21)
A facile hydrophosphonylation of alkenes by phosphites promoted by potassium carbonate was developed. The reaction features include easy handling, environmental friendliness, and avoidance of the use of strong bases. A variety of alkenes are tolerated in this reaction, with moderate to excellent yields.
Tributylphosphine catalyzed addition of diphenylphosphine oxide to unsubstituted and substituted electron-deficient alkenes
Salin, Alexey V.,Il'in, Anton V.,Faskhutdinov, Rustem I.,Galkin, Vladimir I.,Islamov, Daut R.,Kataeva, Olga N.
supporting information, p. 1630 - 1634 (2018/03/29)
The PBu3-catalyzed conjugate addition of diphenylphosphine oxide to unsubstituted and substituted electron-deficient alkenes is reported. β-Substituted α,β-unsaturated esters, trans-methyl crotonate and trans-methyl cinnamate, known for their r
Me3P-catalyzed addition of hydrogen phosphoryl compounds P(O)H to electron-deficient alkenes: 1 to 1 vs 1 to 2 adducts
Huang, Tian-Zeng,Chen, Tieqiao,Saga, Yuta,Han, Li-Biao
, p. 7085 - 7093 (2017/11/13)
Trimethyl phosphine was used as an efficient catalyst for the addition of P(O)-H compounds to electron-deficient alkenes. The addition reactions were generally conducted using a catalytic amount of Me3P under mild reaction conditions. Both 1 to 1 and 1 to 2 adducts were obtained.
Radical addition reactions of diphenylphosphine sulfide
Parsons, Andrew F.,Sharpe, David J.,Taylor, Philip
, p. 2981 - 2983 (2007/10/03)
Radical additions of diphenylphosphine sulfide [Ph2P(S)H] to various C=C bonds offers a general, mild and efficient approach to alkyl(diphenyl)phosphine sulfides. Georg Thieme Verlag Stuttgart.
Synthesis of β-(Diphenylphosphinoyl) Ketones
Bell, Andrew,Davidson, Alan H.,Earnshaw, Chris,Norrish, Howard K.,Torr, Richard S.,et al.
, p. 2879 - 2892 (2007/10/02)
The title compounds may be made by addition of phosphorus nucleophiles (Ph2PO-, Ph2POMgX, Ph2PCl) to enones, by addition of phosphorus-stabilised carbanions to a α-carbonyl cation equivalents (2,3-dichloropropene, epoxides, and α-MeO-ketones) and by oxidation of allyl diphenylphosphine oxides.
