Results 171 to 180 of about 55,314 (289)

Solvent-temperature coupled hydride transfer controls product selectivity in the HSiR₃/KO ^<i>t</i> Bu catalytic system. [PDF]

Chem Sci
Yao H, Zhou Z, Liu Y, Zhang DH, Li G.
europepmc   +1 more source

Toward the Synthesis of Pestalustaine A: Structural Revision and Formation of Original Strained Tricyclic Architectures

Angewandte Chemie, EarlyView.
Our synthetic endeavor toward the total synthesis of the reported unprecedented tricyclic skeleton of the sesquiterpene pestalustaine A allowed us to perform divergent cyclizations of a bicyclo[4.4.1]undec‐3‐ene into complex tricyclic architectures and to revise the structure of the natural product.
Wei Cao, Alicia Ross, Jean‐Pierre Baltaze, Régis Guillot, Menglin Xu, Rongzhen Qin, Bingcheng Yang, Isabel Wong, Katayoon Formul, Cyrille Kouklovsky, Dean J. Tantillo, Vincent Gandon, Guillaume Vincent   +12 more
wiley   +2 more sources

Regio- and Stereoselective Deprotonation and Functionalization of Strained 1-Aza[n.1.0]bicycles. [PDF]

J Am Chem Soc
Xie T, Plowright T, Somper JD, Fairchild M, Soler J, Tyler JL, Duarte F, Aggarwal VK.   +7 more
europepmc   +1 more source

Coordination‐Driven Direct C─H Metalation of N‐Heterocycles With a Superbasic Co(II) Amide Co(TMP)2

Angewandte Chemie, EarlyView.
By enabling regioselectivities that are inaccessible with conventional bases, this study introduces a Co(II) amide platform for the deprotonative C─H metalation of sensitive N‐heterocycles. Subsequent interception of the resulting Co(II) intermediates with external oxidants affords a family of sterically congested, TMP‐substituted heterocycles via C─N ...
Na Jin, Manting Mu, Max García‐Melchor, Eva Hevia   +3 more
wiley   +2 more sources

Deprotonation- and TICT-triggered ultra-large Stokes shift of aqueous NIR-emissive hydroxylstryryl-pyridinium derivatives. [PDF]

RSC Adv
Lu X, Xiong L, Zhang Z, Yang H, Li E, Zhang H.   +5 more
europepmc   +1 more source

(-)-Sparteine mediated α-deprotonation of quinuclidine N-oxide

ARKIVOC, 2003
Satinder Vir Kessar, Paramjit Singh, Amarjit Kaur, Sandeep Singh   +3 more
doaj   +1 more source

Mg²⁺ Catalyzes Nonenzymatic RNA Primer Extension through a Concerted Outer-Sphere Mechanism. [PDF]

J Am Chem Soc
Wang R, Nisler C, Cui Q, Gagliardi L, Szostak JW.   +4 more
europepmc   +1 more source

Borylcyclopropanes: Synthetic Strategies and Applications

Angewandte Chemie, EarlyView.
Borylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Aiza A. Butt, Joseph M. Ready
wiley   +2 more sources

pH-Driven Restructuring of Hydration Layers and Cation Adsorption at the Alumina-Water Interface. [PDF]

J Am Chem Soc
Neumann J, Kim Y, Wang X, Harmon KJ, Carr AJ, Lützenkirchen J, Fenter P, Lee SS.   +7 more
europepmc   +1 more source

Organocatalytic Enantioselective Addition of Malonates to Cyclic Imines: A Short Total Synthesis of Tetraponerine T‐1

Angewandte Chemie, EarlyView.
A stereoselective functionalization method of cyclic imines under mild organocatalytic conditions was developed. Bifunctional cinchona alkaloid catalysts combined with carefully optimized reaction conditions to suppress background reactivity enabled highly enantio‐ and diastereoselective addition reactions of malonates to cyclic imines.
Frederic Kölblin, Helma Wennemers
wiley   +2 more sources