Results 41 to 50 of about 10,321 (224)
Enantioselective Allylation from Allene, a Petroleum Cracking Byproduct
, 2018 Allene (C3H4) gas is produced and separated on million-metric-ton scale per year during petroleum refining but is only rarely employed in chemical manufacturing. Meanwhile, the addition of an allyl group (C3H5) to ketone-containing molecules is among the
Yujing, Zhou +3 more
core +1 more source
Molecules, 2019 The organo-catalyzed enantioselective benzylation reaction of α-trifluoromethoxy indanones afforded α-benzyl-α-trifluoromethoxy indanones with a tetrasubstituted stereogenic carbon center in excellent yield with moderate enantioselectivity
Yumeng Liang +3 more
doaj +1 more source
Molecules, 2022 Unprecedented tandem allylic alkylation/intermolecular Michael addition was used in the preparation of novel bicyclic azalides. NMR spectroscopy was used not only to unambiguously determine and characterize the structures of these unexpected products of ...
Sulejman Alihodžić +3 more
doaj +1 more source
Gold-Catalyzed Allylation Reactions [PDF]
, 2016 The allylation reaction is a well-established and indispensable tool for the development of chemical complexity and diversity in organic synthesis. Over several decades, this unique transfor- mation has undergone several developments to establish a more ...
QUINTAVALLA, ARIANNA, BANDINI, MARCO
core +1 more source
, 2021 The late-stage introduction of allyl groups provides an opportunity to synthetic organic chemists for subsequent diversification, providing rapid access to new chemical space.
Timothy, Noel +4 more
core +1 more source
Boron-Catalyzed, Diastereo- and Enantioselective Allylation of Ketones with Allenes [PDF]
, 2022 The diastereo- and enantioselective allylation of ketones remains a synthetic challenge, with transition metal catalysis offering the most applied methods. Here, a boron-catalyzed allylation of ketones with allenes is presented.
Willcox, Dominic R.; id_orcid +16 more
core +1 more source
Re2O7-catalyzed reaction of hemiacetals and aldehydes with O-, S-, and C-nucleophiles
Beilstein Journal of Organic Chemistry, 2013 Re(VII) oxides catalyze the acetalization, monoperoxyacetalization, monothioacetalization and allylation of hemiacetals. The reactions, which take place under mild conditions and at low catalyst loadings, can be conducted using hemiacetals, the ...
Wantanee Sittiwong +4 more
doaj +1 more source
Palladium-Catalyzed Allylation/Benzylation of H-Phosphinate Esters with Alcohols
Molecules, 2016 The Pd-catalyzed direct alkylation of H-phosphinic acids and hypophosphorous acid with allylic/benzylic alcohols has been described previously. Here, the extension of this methodology to H-phosphinate esters is presented. The new reaction appears general,
Anthony Fers-Lidou +2 more
doaj +1 more source
Stereospecific Decarboxylative Allylation of Sulfones
, 2016 Allyl sulfonylacetic esters undergo highly stereospecific, palladium-catalyzed decarboxylative allylation. The reaction allows the stereospecific formation of tertiary homoallylic sulfones in high yield.
Being J. Ka (2268721) +4 more
core +3 more sources
Enzymatic Allylation of Catechols
, 2015 Enzymatic allylation of catechols was realized via catechol O-methyltransferase (COMT) using an allylated S-adenosyl-L-methionine (allyl-SAM) analog, with relatively good chemo- and regioselectivities.
Liu, Yuxue +5 more
core +1 more source