The kinetics and mechanisms of aromatic halogen substitution. Part XXV. The chlorination of 2-methylnaphthalene
作者:G. Cum、P. B. D. de la Mare、J. S. Lomas、M. D. Johnson
DOI:10.1039/j29670000244
日期:——
The chlorination of 2-methylnaphthalene in acetic acid is generally similar to that of naphthalene, in that products of substitution are accompanied by those of addition. The main components of the reaction mixture have been separated, and the structures of a crystalline tetrachloride, m.p. 99–99·5°, and of an acetoxytrichloride, m. p. 130°, have been deduced from studies of their proton magnetic resonance
Organic solvent-free process for preparing pyrimidinyl organophosphates
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0277292A1
公开(公告)日:1988-08-10
Pyrimidinyl organophosphorous compounds are prepared by contacting an aqueous solution containing a pyrimidinate with a phosphoroester in the presence of a phase transfer catalyst and in the absence of an added organic solvent.
[(n-C4H9)(4)N](2)[Mo6O18(N-1-C10H6-2-CH3)] (1) has been prepared by the reaction of 1-amino-2-methylnaphthalene hydrochloride with [(n-C4H9)(4)N](4)[alpha-Mo8O26] in the presence of 1,3-dicyclohexylcarbodiimide. Three solvent-free crystalline phases are isolated from the mixed solvents of acetone and acetic ether. The X-ray single-crystal structures of the three phases have been determined, showing the packing and supramolecular assembly characters (pseudohigher symmetry, helical chains, and pi-pi stacking) by which the effect of solvent polarity and crystallization speed on polymorphism in organic-inorganic hybrids has been demonstrated.