- Using hydrogen bonding to control carbamate C-N rotamer equilibria
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In chloroform solution, the syn/anti rotamer ratios for AT-(2-pyridyl)carbamates, 3, and JV-phenylcarbamates, 4, are close to 0.05. Addition of the double hydrogen bonding acetic acid moderately stabilizes the syn rotamer of 4, but has no measurable effec
- Moraczewski, Alexei L.,Banaszynski, Laura A.,From, Aaron M.,White, Courtney E.,Smith, Bradley D.
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p. 7258 - 7262
(2007/10/03)
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- A CONVENIENT LEWIS ACID CATALYZED PREPARATION OF CARBAMATES FROM SECONDARY ALKOHOLS AND ISOCYANATES
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The Lewis acids have been found to be highly effective catalysts for the carbamate formation from secondary alcohols and isocyanates.KEYWORDS - Lewis acid; secondary alcohol; isocyanate; carbamate; γ-carbamoyloxy-α,β-enoate
- Ibuka, Toshiro,Chu, Gil-Namg,Aoyagi, Takeshi,Kitada, Kazuko,Tsukida, Takahiro,Yoneda, Fumio
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p. 451 - 454
(2007/10/02)
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