Results 91 to 100 of about 938,190 (242)

Synthesis of spirocyclic thiazolidinediones using ring-closing metathesis and one-pot sequential ring-closing/cross metathesis

, 2011
A novel synthetic route to spirocyclic thiazolidinediones is reported by utilizing ring-closing metathesis (RCM). A selective cross metathesis (CM) of N-allyl azaspiro derivatives with different olefins has been demonstrated to prepare substituted ...
Paladhi, Sushovan, Dash, Jyotirmayee, Sushovan Paladhi, Dhara, Kalyan, Midya, Ganesh Chandra, Jyotirmayee Dash, Kalyan Dhara, Ganesh Chandra Midya   +7 more
core   +1 more source

Hydrogen Release From Silicon─Hydrogen Systems: From Surface Chemistry to Higher‐Coordinate Molecular Mechanisms

Chemistry – A European Journal, EarlyView.
Hydrogen‐release processes in silicon chemistry occur across a broad spectrum of systems, including crystalline silicon surfaces, nanoporous materials, Zintl phases, and molecular hydrides. This Review highlights how Si─H activation and H2 evolution are governed by structure, coordination environment, and dynamic access to reactive geometries, with ...
Robin Rothfelder, Jonathan O. Bauer
wiley   +1 more source

First Stereoselective Total Synthesis of (3)-De--methylbotryosphaeriodiplodin

Natural Product Communications, 2019
A simple and highly efficient first stereoselective total synthesis of a benzofused macrocyclic lactone, ( 3S,7R )-de- O -methylbotryosphaeriodiplodin has been accomplished utilizing Jacobson's kinetic resolution, Marouka asymmetric allylation, Stille ...
Jhillu S. Yadav, Chitteti Divya Vani, Mule Chowdeswari, K. Ananthalakshmi, N. Bhasker, Basi V. Subba Reddy   +5 more
doaj   +1 more source

Exploring the Reversibility of the Ring-Closing Metathesis Mediated Cross-linking of Dendrimers

, 2016
Exploring the Reversibility of the Ring-Closing Metathesis Mediated Cross-linking of ...
N. Gabriel Lemcoff (1677277), Steven C. Zimmerman (1272135), Stephanie L. Elmer (2470804)   +2 more
core   +1 more source

Persilylated and Related Silyl Anion‐Induced Synthesis of Group 3–10 Metal–Silyl Complexes

Chemistry – A European Journal, EarlyView.
Persilylated and related silyl anions serve as powerful tools for constructing metal–silyl complexes across group 3–10 elements. Their strong σ‐donating ability and steric bulk stabilize low‐coordinate, reactive species and enable unique bonding motifs.
Yusuke Sunada
wiley   +1 more source

A Concise and Stereoselective Total Synthesis of Paecilomycin E

Natural Product Communications, 2019
A concise approach for the first total synthesis of paecilomycin E is described involving Alder-Rickert reaction, Mitsunobu esterification and ring closing metathesis as the key steps.
A. Srinivas Reddy, Gundamalla Bhavani, Sandhya Jonnala, Rajashaker Bantu, B. V. Subba Reddy   +4 more
doaj   +1 more source

Xanthene‐Based FLPs Featuring Perchloroarylborane Substitutents: Interplay of Noncovalent Aggregation and Dihydrogen Activation

Chemistry – A European Journal, EarlyView.
Frustrated Lewis Pairs featuring perchloroarylborane Lewis acid groups are found to display unprecedented H2 uptake as a function of temperature, resulting from the thermodynamic balance between H─H cleavage and noncovalent intermolecular aggregation.
Aisling F. Roper, Agamemnon E. Crumpton, Dermot O'Hare, Simon Aldridge   +3 more
wiley   +1 more source

Trends and Future Directions in Organic Chemistry for Drug Discovery

Chemistry – A European Journal, EarlyView.
Organic synthesis is being reshaped by the convergence of catalytic innovation, automation, artificial intelligence, and emerging therapeutic modalities. Late‐stage functionalization, photoredox and electrochemical methods, biocatalysis, flow chemistry, DELs, and proximity‐based drugs are examined as components of closed‐loop discovery.
Paweł Kozyra, Maciej Masłyk
wiley   +1 more source

Organic-Inorganic Hybrid Silica Material Derived from a Monosilylated Grubbs-Hoveyda Ruthenium Carbene as a Recyclable Metathesis Catalyst

Molecules, 2010
The synthesis of a monosilylated Grubbs-Hoveyda ruthenium alkylidene complex is described, as well as the preparation and characterization of the corresponding material by sol-gel cogelification with tetraethoxysilane (TEOS) and the assay of this ...
Michel Wong Chi Man, Ramón Alibés, Xavier Cattoën, Guadalupe Borja, Roser Pleixats   +4 more
doaj   +1 more source

A Naphthalenediimide–Imidazolium Macrocycle for Orthogonal Molecular Recognition

Chemistry – A European Journal, EarlyView.
One host, two recognition modes: a naphthalenediimide–imidazolium macrocycle switches between π‐driven encapsulation and hydrogen‐bonding to bind structurally diverse molecular and metal‐complex guests. ABSTRACT A naphthalenediimide‐imidazolium macrocycle is shown to function as a dual‐site supramolecular host for orthogonal molecular recognition.
Joel Martínez‐Visiedo, Susana Ibáñez, Eduardo Peris   +2 more
wiley   +1 more source