Unusual synthesis of stable pyridinium dinitromethylides
作者:Eva Andréasson、Christopher G. Newton、W. David Ollis、Charles W. Rees、David I. Smith、Derek E. Wright
DOI:10.1039/c39830000816
日期:——
Nitration of the imidazo[1,2-a]pyridines (1) or (2), or (5) or (6), and (9) with nitric and sulphuric acids gives the pyridiniumdinitromethylides (4a), (8), and (10), respectively, in which the pyridinium and dinitromethylide groups are orthogonal.
用硝酸和硫酸硝化咪唑并[1,2- a ]吡啶(1)或(2)或(5)或(6)和(9),得到吡啶鎓二硝基甲基化物(4a),(8),和(10),其中吡啶鎓和二硝基甲基化物基团是正交的。
ANDREASSON, E.;NEWTON, CH. G.;OLLIS, W. D.;REES, CH. W.;SMITH, D. I.;WRIG+, J. CHEM. SOC. CHEM. COMMUN., 1983, N 15, 816-817
作者:ANDREASSON, E.、NEWTON, CH. G.、OLLIS, W. D.、REES, CH. W.、SMITH, D. I.、WRIG+
DOI:——
日期:——
REES, C. W.;SMITH, D. I., J. CHEM. SOC. PERKIN TRANS.,(1987) N 5, 1159-1163