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Hydrophosphorylations palladium

R = n-CeHia, Ph, p-Tol, NC(CH2)a, HC=C(CH2)5, 3-HC=C-C6H4, 1-cyclohexenyl, SiMea Scheme 5-17 Palladium-catalyzed hydrophosphorylation of alkynes... [Pg.154]

Scheme 5-20 Proposed mechanism for palladium-catalyzed bis-hydrophosphorylation of alkynes... Scheme 5-20 Proposed mechanism for palladium-catalyzed bis-hydrophosphorylation of alkynes...
Han, L.-B., Mirzaei, F., Zhao, C.-Q., and Tanaka, M., High reactivity of a five-membered cyclic hydrogen phosphonate leading to development of facile palladium-catalyzed hydrophosphorylation of alkenes, /. Am. Chem. Soc., 122, 5407, 2000. [Pg.144]

By using Josiphos ligands, palladium-catalysed hydrophosphorylation of norbomen-es with hydrogen phosphonates proceeds efficiently to give the corresponding phos-phonates in high enantioselectivities.90... [Pg.335]

The palladium-catalysed regio- and stereoselective hydrophosphorylation of allenes and 1,3-dienes using phosphite (193) offers a convenient and clean route to a variety of allylphosphonates (194 a-b) (examples are given in Scheme... [Pg.141]

In terms of the yield and reaction rate, the Reformatskii reaction is a rather convenient route to biologically active 3-methylene-substituted 2-oxo-l,2-oxaphosphacyclanes 85, including those having a spiro-structure (Scheme 52) [116, 117]. Metal-catalysed formation of the P-C bond was also successfully used for the synthesis of similar phostones [118]. Thus, 3-methylene-1,2-oxaphosphacycla-nes 85 were formed in reasonable yields by palladium-catalysed intramolecular cyclization in a series of hydrophosphoryl compounds 86 (Scheme 52). [Pg.134]

Hydrophosphorylation of alkenes and alkynes with phosphinic acid derivatives such as alkyl phosphinates [H2P(0)(0R)] and anilinium phosphinate [PhNH3 0P (0)H2] is successfully catalyzed by palladium complexes, in particular those ligated by xantphos and dppf [25]. Polymer-botmd palladium catalyst 11 has proved to catalyze the same reactions with phosphinic acid to give good yields, although the... [Pg.176]

Scheme 21 A synthetic applicatirai of polymer-bound palladium catalyst to hydrophosphorylation... Scheme 21 A synthetic applicatirai of polymer-bound palladium catalyst to hydrophosphorylation...
Gulykina NS, Dolgina TM, Bondarenko GN, Beletskaya IP (2003) Hydrophosphorylation of terminal alkynes catalyzed by palladium. Russ J Org Chem 39 797-807... [Pg.257]

Allen A Jr, Manke DR, Lin W (2000) Synthesis of functional bisphosphonates via new palladium-catalyzed bis-hydrophosphorylation reactions. Tetrahedron Lett 41 151-154... [Pg.258]

Zhao Ch-Q, Han L-B, Goto M, Tanaka M (2001) Rhodium-catalyzed hydrophosphorylation of terminal alkynes leading to highly selective formation of (i )-afkenylphosphonates complete reversal of regioselectivity to the palladium-catalyzed counterpart. Angew Chem Int Ed 40 1929-1932... [Pg.258]

Ananikov VP, Khemchyan LL, Beletskaya IP (2009) Celebrating 20 years of SYNLETT— special essay general procedure for the palladium-catalyzed selective hydrophosphorylation... [Pg.258]

Barta K, Francid G, Leitner W, Lloyd-Jones GC, Shepperson IR (2008) A new class of 3 -sulfonyl BINAPHOS ligands modulation of activity and selectivity in asymmetric palladium-catalysed hydrophosphorylation of styrene. Adv Synth Catal 350 2013-2023... [Pg.258]

Xu Q, Han L-B (2006) Palladium-catalyzed asymmetric hydrophosphorylation of norbomenes. Org Lett 8 2099-2101... [Pg.258]

Zhao Ch-Q, Han L-B, Tanaka M (2000) Palladium-catalyzed hydrophosphorylation of allenes leading to regio- and stereoselective formation of allylphosphonates. Organometallics 19 4196-4198... [Pg.258]

See other pages where Hydrophosphorylations palladium is mentioned: [Pg.153]    [Pg.299]    [Pg.109]    [Pg.144]    [Pg.146]    [Pg.186]    [Pg.37]    [Pg.46]    [Pg.190]    [Pg.306]    [Pg.126]    [Pg.1470]    [Pg.153]    [Pg.178]    [Pg.192]    [Pg.257]   
See also in sourсe #XX -- [ Pg.216 , Pg.217 , Pg.218 , Pg.219 , Pg.220 , Pg.221 , Pg.222 , Pg.223 , Pg.224 ]



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