1) Tetrahedron
Volume 57, Issue 44, 29 October 2001, Pages 9073-9085
Neighboring group effect of five-membered heteroaromatic rings for π-facial selectivity in the reactions of fused isopropylidenenorbornene systems with electrophilic reagents
Tomoshige Kobayashi, Takeo Tsuzuki, Yoko Tayama and Yosuke Uchiyama
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http://dx.doi.org/10.1016/S0040-4020(01)00916-42) Quaternary Ammonium Salts
Their Use in Phase-Transfer Catalysis
2001, Pages 303-363
7 - Preparation and Synthetic Applications of Carbenes
R. Alan Jones
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http://dx.doi.org/10.1016/B978-012389171-6/50008-83) Advances in Heterocyclic Chemistry
Volume 65, 1996, Pages 93-233
Carbenes and Carbenoids in Synthesis of Heterocycles.
A.F. Khlebnikov, M.S. Novikov and R.R. Kostikov
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http://dx.doi.org/10.1016/S0065-2725(08)60296-2Большое спасибо.