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Acid-Catalyzed Versus Thermally Induced C1-C1′ Bond Cleavage in 1,1′-Bi-2-naphthol : An Experimental and Theoretical Study. / Genaev, Alexander M.; Shchegoleva, Lyudmila N.; Salnikov, George E. и др.
в: Journal of Organic Chemistry, Том 84, № 11, 07.06.2019, стр. 7238-7243.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Acid-Catalyzed Versus Thermally Induced C1-C1′ Bond Cleavage in 1,1′-Bi-2-naphthol
T2 - An Experimental and Theoretical Study
AU - Genaev, Alexander M.
AU - Shchegoleva, Lyudmila N.
AU - Salnikov, George E.
AU - Shernyukov, Andrey V.
AU - Shundrin, Leonid A.
AU - Shundrina, Inna K.
AU - Zhu, Zhongwei
AU - Koltunov, Konstantin Yu
PY - 2019/6/7
Y1 - 2019/6/7
N2 - Experiments show that 1,1′-bi-2-naphthol (BINOL) undergoes facile C1-C1′ bond cleavage under action of triflic acid at temperatures above 0 °C to give mainly 2-naphthol along with oligomeric material. CASSCF and MRMP//CASSCF computations have demonstrated unambiguously that this unusual mode of scission of the biaryl bond can occur in the C1,C1′-diprotonated form of BINOL via a mechanism involving homolytic cleavage prompted by the intramolecular electrostatic repulsion. These findings also provide insights into the mechanism of a comparatively easy thermal cleavage of BINOL, implying the intermediacy of its neutral diketo form.
AB - Experiments show that 1,1′-bi-2-naphthol (BINOL) undergoes facile C1-C1′ bond cleavage under action of triflic acid at temperatures above 0 °C to give mainly 2-naphthol along with oligomeric material. CASSCF and MRMP//CASSCF computations have demonstrated unambiguously that this unusual mode of scission of the biaryl bond can occur in the C1,C1′-diprotonated form of BINOL via a mechanism involving homolytic cleavage prompted by the intramolecular electrostatic repulsion. These findings also provide insights into the mechanism of a comparatively easy thermal cleavage of BINOL, implying the intermediacy of its neutral diketo form.
KW - HYDROGEN-TRANSFER
KW - BINOL
KW - THERMOLYSIS
KW - EFFICIENT
KW - RADICALS
UR - http://www.scopus.com/inward/record.url?scp=85066959293&partnerID=8YFLogxK
U2 - 10.1021/acs.joc.9b00915
DO - 10.1021/acs.joc.9b00915
M3 - Article
C2 - 31083942
AN - SCOPUS:85066959293
VL - 84
SP - 7238
EP - 7243
JO - Journal of Organic Chemistry
JF - Journal of Organic Chemistry
SN - 0022-3263
IS - 11
ER -
ID: 20530576