The ene-like reaction of naphtalen-1-ylamine and naphtalen-2-ylamine, and pyridin-2-ylamine with diethyl azodicarboxylate (DEAD) as well as that of naphthalen-2-ol with 4-phenyl-1,2,4-trizoline-3,5-dione is catalyzed by lithium perchlorate. Also conversion of ester function of (DEAD) to amide function in reaction with 2-aminopyridine and further rearrangement of ethyl Npyridyn-2-ylcarbamoylazoformate into ethyl pyridin-2-ylcarbamate are catalyzed by LiClO 4 .

Phenol ethers Q 0270Studies on the Catalysis of the Reaction of Organotin Phenoxides with Diethyl Acetylenedicarboxylate. -In the presence of LiClO4, tinphenoxides (V) and diester (II) give mixtures of phenyl vinyl ethers and o-vinylphenol derivatives. In the case of 2,6-disubstituted tinphenoxide (I) only phenol ethers are formed. -(KINART*, W.; KINART, C. M.; TRAN, Q. T.; OSZCZEDA, R.; Appl. Organomet. Chem. 19 (2005) 1, 147-152; Dep. Org. Chem., Univ. Lodz, PL-90-136 Lodz, Pol.; Eng.) -Klein 25-073

Different organotin phenoxides react at room temperature with diethyl acetylenedicarboxylate in diethyl ether, in the presence of lithium perchlorate to give a mixture of corresponding phenyl vinyl ethers and ring ethenylated phenols.

No abstract

Organotin phenoxides react at room temperature with diethyl azodicarboxylate in diethyl ether, in the presence of lithium Perchlorate, to give the corresponding ring-aminated phenols in excellent yield.