The direct cleavage of C(CO)−C single bonds, delivering otherwise inaccessible compounds, is a significant challenge. Although the transition metal-catalyzed insertion of functional groups into C(CO)−C bonds has been studied, strained ketone substrates or chelating assistance were commonly required...
Here, by photocatalytic, reversible C–H sampling, we report a functional-group translocation reaction of cyano (CN) groups in common nitriles, allowing for the direct positional exchange between a CN group and an unactivated C−H bond. The reaction shows high fidelity for 1,4-CN ...
Stabilization of branched oligosaccharides: Lewis(x) benefits from a nonconventional C-H···O hydrogen bond. Although animal lectins usually show a high degree of specificity for glycan structures, their single-site binding affinities are typically weak, a drawbac... M Zierke,M Smiesko,S Rabbani...
The mechanism is first started by photocatalyst excitation then pyridinium complex 41 formed from Tf2O/pyridine undergoes single-electron reduction to yield radical species. The obtained radical anion facilitates the release of electrophilic CF3 radicals and the addition of the resultant radical to ...
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The predicted presence of an N-terminal signal peptide, a single GH18 catalytic module and varying numbers of CBM18 and CBM50 substrate binding modules in the 3 full-length subgroup C-II chitinases in A. nidulans is in agreement with the reported modular structure of subgroup C-II chitinase...
Method of producing acyloxysilane compound having a functional group bonded to the silicon atom through a Si-C bondPROBLEM TO BE SOLVED: To obtain the subject compound useful for modified silicon raw material at high yield in a state that danger in the reaction is decreased and regioselectivity ...
The C–N bond motif is found in many fertilizers (such as urea) as well as commodity and fine chemicals (with functional groups such as amines and amides). The ability to generate C–N bonds from reactants such as CO2, NO3– or N2 would provide sustainable alternatives to the ...
The transition states were confirmed by a single imaginary frequency and the correct vibrational vector. After that, B3lyp/6–311+G(d,p) level was used to calculate the single point energy with SMD90 solvation model to improve the computational accuracy. AlphaFold2 predictions of the modular ...