Results 51 to 60 of about 2,066,464 (240)
Delocalized hypervalent silyl radical supported by amidinate and imino substituents [PDF]
, 2016 The reaction of the amidinato silylsilylene with a functionalized diaminochlorosilyl substituent [LSiSi(Cl){(NtBu)2C(H)Ph}] (1, L = PhC(NtBu)2) with ArN=C=NAr (Ar = 2,6-iPr2C6H3) in toluene afforded the delo-calized hypervalent silyl radical [LSi(-CNAr ...
Carter, Emma +5 more
core +4 more sources
High Pressure Stabilizes the Elusive Hexacoordinated Carbon
ChemistryEurope, EarlyView.The MCF6 species (M = Ca, Sr) is more stable than the bicomponent MF2…CF4 mixture in the solid‐state at high pressure (p > 400 GPa). The main building block is the [CF6]2− unit in which carbon is hexacoordinated. Unusually high coordination number for elements has been of great interest in chemistry.
Shovan Das, Adrish Das, Ayan Datta
wiley +1 more source
Triazolinediones as highly enabling synthetic tools [PDF]
, 2016 Triazolinediones (TADs) are unique reagents in organic synthesis that have also found wide applications in different research disciplines, in spite of their somewhat "exotic" reputation.
Billiet, Stijn +5 more
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Chemistry – A European Journal, EarlyView.Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley +1 more source
Neutral and Cationic Bis-Chelate Monoorganosilicon(IV) Complexes of 1-Hydroxy-2-pyridinone [PDF]
, 2017 A series of spirocyclic monoorganosilicon compounds of the form RSi(OPO)2Cl [R = phenyl (1); p-tolyl (2); benzyl (3); Me (4); tBu (5); thexyl (6)] (OPO = 1-oxo-2-pyridinone) was synthesized and characterized by 1H , 13C, and 29Si NMR spectroscopy, X-ray ...
Brennessel, William W +2 more
core +4 more sources
Ring Formation in Sesquiterpene Synthesis: Biomimetic vs. Non‐Biomimetic Strategies
European Journal of Organic Chemistry, EarlyView.A short review of cyclase enzyme‐mediated ring formation in sesquiterpene biosynthesis is presented as a prelude to six case studies examining the merits and demerits of biomimetic vs. non‐biomimetic strategies for carbocyclisation in the total synthesis of this iconic natural product class.
Bohan Lin, Chen Dai, Alan C. Spivey
wiley +1 more source
Attempts Towards Total synthesis of (±) Spirooliganone-A [PDF]
, 2015 The group has recently reported a novel protocol of oxidative dearomatization of napthols using phenyl selenium bromide (PhSeBr). The progress through this process towards the natural product synthesis especially the Spiroliganone system in the different
Bhattacharjya , Punarbasu
core
European Journal of Organic Chemistry, EarlyView.The previously unknown meta‐hydroxy‐substituted aryliodonium salts were prepared by a two‐step one‐pot synthesis from 3‐acetoxy‐1‐[(diacetoxy)iodo]arenes and arylboronic acids. This procedure works well with halogen‐, methyl‐, methoxycarbonyl‐, or methoxy‐substituted arylboronic acids as well as naphthalenylboronic acids, phenanthren‐9‐ylboronic acid ...
Akira Yoshimura +8 more
wiley +1 more source
Structural Conformers of (1,3-Dithiol-2-ylidene)ethanethioamides: The Balance Between Thioamide Rotation and Preservation of Classical Sulfur-Sulfur Hypervalent Bonds [PDF]
, 2015 The reaction of N-(2-phthalimidoethyl)-N-alkylisopropylamines and S2Cl2 gave 4-N-(2-phthalimidoethyl)-N-alkylamino-5-chloro-1,2-dithiol-3-thiones that quantitatively cycloadded to dimethyl or diethyl acetylenedicarboxylate to give stable thioacid ...
Calvo Gredilla, Patricia +9 more
core +1 more source
European Journal of Organic Chemistry, EarlyView.Togni reagent I, one of the most used electrophilic trifluoromethylating reagents, has been radiolabeled with fluorine‐18 starting from the widely available fluoro‐benziodoxole and the [18F]Ruppert–Prakash reagent. To demonstrate the broad potential for late‐stage functionalization, aliphatic carboxylic acids were successfully converted into their 18F ...
Lizeth Y. F. Haveman +2 more
wiley +1 more source