Highly Regioselective Nitration of Hexamethylbenzene and Its Derivatives to Dinitroprehnitene with Excess Nitronium Tetrafluoroborate
作者:G. K. Surya Prakasb、Qi Wang、Xing-Ya Li、George A. Olah
DOI:10.1002/hlca.19900730504
日期:1990.8.8
Hexamethylbenzene and its derivatives undergo very clean regioselective dinitration to dinitroprehnitene (1, 2, 3, 4-tetramethyl-5, 6-dinitrobenzene) with excess of nitronium tetrafluoroborate in dry CH2C12 solution. The mechanism of this unexpected new nitration is also discussed.
REDUCTION OF AROMATIC NITRO COMPOUNDS WITH SODIUM TELLURIDE
作者:Hitomi Suzuki、Hajime Manabe、Masahiko Inouye
DOI:10.1246/cl.1985.1671
日期:1985.11.5
Sodium telluride, prepared by heating tellurium with Rongalite in aqueous sodium hydroxide, easily reduces aromaticnitrocompounds to the corresponding amines in good yields. The reduction can be carried out using a catalytic amount of tellurium, since sodium telluride is readily regenerated in the presence of excess Rongalite.
Quinoline Derivatives And Insecticide Comprising Thereof As Active Ingredient
申请人:Yamamoto Kazumi
公开号:US20070203181A1
公开(公告)日:2007-08-30
Disclosed are compounds that have excellent insecticidal activity and are usable as agricultural and horticultural insecticides. Compounds represented by formula (I) or agriculturally and horticulturally acceptable acid addition salts thereof have excellent insecticidal activity and are usable as agricultural and horticultural insecticides.
Provided are methods for the synthesis of heterocyclic compounds such as benzimidazole carboxylic acid core structures having Formula Ia-1 and their synthetic intermediates: wherein Z, X
1
, X
2
, X
5
, R
2
and R
10
are as defined herein. Compounds of Formula Ia-1 and their synthetic intermediates can be used to prepare heterocyclic derivatives such as benzimidazole derivatives.