Relevant articles and documents
1,1-Cycloaddition of oxalyl dichloride with dialkenylmetal compounds: Formation of cyclopentadienone derivatives by the reaction of 1,4,-dilithio-1,3-dienes or zirconacyclopentadienes with oxalyl chloride in the presence of CuCl
Chen, Chao Xi, Chanjuan Jiang, Yanfeng Hong, Xiaoyin
1,4-Dilithio-1,3-dienes or zirconacyclopentadienes reacted with oxalyl chloride in the presence of CuCl in a 1,1-cycloaddition manner to give cyclopentadienone derivatives in high yields along with the elimination of CO. Copyright
CIDNP 1H study of the photolysis of 7-sila- and 7-germa-norbornadienes
Kolesnikov, S. P. Egorov, M. P. Galminas, A. M. Ezhova, M. B. Nefedov, O. M. et al.
The photochemical decomposition of 7-sila- and 7-germa-norbornadienes (1a,b) was studied by the CIDNP 1H technique.The reactions proceeds by a two-step mechanism via the reversible formation of singlet biradicals, II.The triplet biradical (II), formed as a result of S-T conversion of (II)(S), irreversibly decomposes giving Me2E (E = Si, Ge).The insertion of Me2E into the C-Br bond of PhCH2Br and the Sn-Cl bond of Me3SnCl occurs via a radical mechanism, as deduced from the CIDNP effects observed in these reactions.
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