From discovery to production: Scale-out of continuous flow meso reactorsBeilstein Journal of Organic Chemistry - Tập 5
Peter Styring, A. Parracho
A continuous flow parallel reactor system has been developed to provide a rapid and seamless transition from the discovery phase and production phase of chemical synthesis, particularly in low volume-high value pharmaceuticals production. Using a single fixed bed catalytic meso reactor, reactions can be screened on a small discovery scale over short time scales. The intensified process pro...... hiện toàn bộ
One-pot synthesis of epoxides from benzyl alcohols and aldehydesBeilstein Journal of Organic Chemistry - Tập 14 - Trang 2308-2312
Edwin Alfonzo, Jesse W L Mendoza, Aaron B. Beeler
A one-pot synthesis of epoxides from commercially available benzyl alcohols and aldehydes is described. The reaction proceeds through in situ generation of sulfonium salts from benzyl alcohols and their subsequent deprotonation for use in Corey–Chaykovsky epoxidation of aldehydes. The generality of the method is exemplified by the synthesis of 34 epoxides that were made from an array of el...... hiện toàn bộ
Tối ưu hóa xương sống trong các phức chất indenylidene–ruthenium có chứa carbene dị vòng không bão hòa Dịch bởi AI Beilstein Journal of Organic Chemistry - Tập 6 - Trang 1120-1126
César A. Urbina‐Blanco, Xavier Bantreil, Hervé Clavier, Alexandra M. Z. Slawin, Steven P. Nolan
Ảnh hưởng steric và điện tử của sự thay thế xương sống trong các carbene dị vòng IMes (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene) đã được điều tra bằng cách tổng hợp chuỗi phức chất [RhCl(CO)2(NHC)] để định lượng một cách thực nghiệm tham số điện tử Tolman (điện tử) và tỷ lệ thể tích chôn vùi (%Vbur, steric)...... hiện toàn bộ
Synthesis and characterization of new diiodocoumarin derivatives with promising antimicrobial activitiesBeilstein Journal of Organic Chemistry - Tập 7 - Trang 1688-1696
Hany M. Mohamed, Ashraf Hassan Fekry Abd El‐Wahab, Ahmed M. El‐Agrody, Ahmed H. Bedair, F. Eid, Mostafa M. Khafagy, Kamal A Abd-EL-Rehem
A series of 6,8-diiodocoumarin-3-N-carboxamides (4–11) were prepared. Treatment of ethyl 6,8-diiodocoumarin-3-carboxylate (1) with ethyl cyanoacetate/NH4OAc gave ethyl 2-(3-carbamoyl-6,8-diiodocoumarin-4-yl)-2-cyanoacetate (12) and 2-amino-4-hydroxy-7,...... hiện toàn bộ
Parallel and four-step synthesis of natural-product-inspired scaffolds through modular assembly and divergent cyclizationBeilstein Journal of Organic Chemistry - Tập 8 - Trang 930-940
Hiroki Oguri, Haruki Mizoguchi, Hideaki Oikawa, Aki Ishiyama, Masato Iwatsuki, Kazuhiko Otoguro, Satoshi Ōmura
By emulating the universal biosynthetic strategy, which employs modular assembly and divergent cyclizations, we have developed a four-step synthetic process to yield a collection of natural-product-inspired scaffolds. Modular assembly of building blocks onto a piperidine-based manifold 6, having a carboxylic acid group, was achieved through Ugi condensation, ... hiện toàn bộ
5-Aminopyrazole as precursor in design and synthesis of fused pyrazoloazinesBeilstein Journal of Organic Chemistry - Tập 14 - Trang 203-242
Ranjana Aggarwal, Suresh Kumar
The condensation of 5-aminopyrazole with various bielectrophilic moieties results in the formation of pyrazoloazines, an interesting array of fused heterocyclic systems. The development of new synthetic routes towards pyrazoloazines for their biological and medicinal exploration is an attractive area for researchers throughout the world. The present review focuses on various synthetic meth...... hiện toàn bộ