The published data on the comparative activities of the nitro group, fluorine and chlorine in
aromatic nucleophilic substitution reactions are generalised and systematised. The factors …

Introduction π-conjugated non-Kekulé1 molecules cannot be assigned classical structures2
since they lack at least one bond from the number predicted by the standard rules of …

Обобщены и систематизированы литературные данные о сравнительной
подвижности нитрогруппы, фтора и хлора в реакциях нуклеофильного ароматического …

Second-order rate constants for the reactions of para-substituted diarylcarbenium ions (X-
C6H4)(Y-C6H4) CH+ with various alkenes have been determined in CH2CI2 solution at-70 …

Semiempirical quantum chemical calculations (AM1/CI and PM3/CI) confirm the qualitative
perturbational prediction that electron-withdrawing groups on the ring nitrogen of a 3, 4 …

The title compound 4a, a purpletransient whose main UV-vis absorption band occurs near
490 nm (e= 5000 M_1 cm-1), has been generated by irradiation of 2, 3, 5, 6-tetramethylene …

In order to better understand the structure and properties of 2λ-thioallyl (alternatively named
2-thiapropanediyl or thioformaldehyde S-methide) and the heterocyclic derivatives 3, 4 …

A full theoretical study of the reaction between a novel type of ylide, ie nitrone ylides, and
alkenes has been carried out. Both concerted and polar stepwise mechanisms have been …

Experimental and computational DFT studies of the Diels–Alder (DA) reaction mechanism
for the series of 2H‐pyran‐2‐ones 1 and non‐symmetrically substituted alkynes 2, 10, and …

Methods are described for the synthesis of bis-diazene precursors of catenated tetraradicals.
Photodeazetation in a low-temperature matrix of the N-tosylpyrrole member of the series …