Kuznetsov

Collie M J (ed) 1980 Corrosion inhibitors Deveiopments since 1980 (Park Ridge, NJ Noyes) Kuznetsov Y I 1996 Organic inhibitors of Corrosion of Metais (New York Plenum)... 

P. V. Kuznetsov, V. A. Pechenyuk. and L. B. Dashkevich. Tezisy Dokl. Nauchn Sess. Khim. Tekhnol. Org. Soedin. Ser S Emistykh. Neftei 13ih, 175 (1974) Chem. Abstr.. 86, 5360. 

While being very similar in the general description, the RLT and electron-transfer processes differ in the vibration types they involve. In the first case, those are the high-frequency intramolecular modes, while in the second case the major role is played by the continuous spectrum of polarization phonons in condensed 3D media [Dogonadze and Kuznetsov 1975]. The localization effects mentioned in the previous section, connected with the low-frequency part of the phonon spectrum, still do not show up in electron-transfer reactions because of the asymmetry of the potential. 

Note that 1,4-substituted butadiynes with diazomethane can form two isomers. Kuznetsov and co-workers have considered this problem in detail and established that diphenyldiacetylene with diazomethane forms, in standard conditions (ether, 0°C, 9 days), only one of the two possible regioisomers 4-phenyl-3(5)-phenylethynylpyrazole (yield 86%) (93ZOB1107). The cyclization of derivatives of phenoxy-2,4-hexadiyn-6-oles with diazomethane leads to only one isomer of alkynylpyrazole (76MI1 77MI1) (Scheme 8). 

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