Effects of substituents and generation methods for insertion-addition selectivities of arylcarbene in alcohol-olefin binary mixtures. Intervention of reaction of diazo …
H Tomioka, S Suzuki, Y Izawa
Index: Tomioka, Hideo; Suzuki, Shinji; Izawa, Yasuji Journal of the American Chemical Society, 1982 , vol. 104, # 4 p. 1047 - 1050
Full Text: HTML
Citation Number: 10
Abstract
Abstract: A Hammett study of the insertion-addition selectivity (ki/ka) and cyclopropanation stereoselectivity (k,/k,) of'arylcarbene” generated either photolytically or thermally in 2- propanol-ethyl vinyl ether binary mixtures showed that p values are highly sensitive to the generation method. Thus, plots of ki/ka and kJk, vs. u (u') in the photolytic run gave p values of-0.96 (r=-0.96) and-0.15 (r=-0.95), respectively, whereas similar values are+ 1.4 (r= 0.93 ...
Related Articles:
Efficient reductive etherification of carbonyl compounds with alkoxytrimethylsilanes
[Hatakeyama, Susumi; Mori, Hisato; Kitano, Kaori; Yamada, Hidetoshi; Nishizawa, Mugio Tetrahedron Letters, 1994 , vol. 35, # 25 p. 4367 - 4370]
New method for the synthesis of benzyl alkyl ethers mediated by FeSO4
[Joshi, Girdhar; Adimurthy, Subbarayappa Synthetic Communications, 2011 , vol. 41, # 5 p. 720 - 728]
[Gellert, Beate A.; Kahlcke, Nils; Feurer, Markus; Roth, Stefanie Chemistry - A European Journal, 2011 , vol. 17, # 43 p. 12203 - 12209]
[Barluenga, Jose; Alonso-Cires, Luisa; Campos, Pedro J.; Asensio, Gregorio Synthesis, 1983 , # 1 p. 53 - 55]
A new conversion of esters to ethers and its application to the preparation of furano-18-crown-6
[Baxter, Steven L.; Bradshaw, Jerald S. Journal of Organic Chemistry, 1981 , vol. 46, # 4 p. 831 - 832]