61575-02-8Relevant academic research and scientific papers
Dipole Moments and UV Spectra of some Long-chain Molecules
Baliah, V.,Aparajithan, K.
, p. 255 - 259 (2007/10/02)
About one hundred compounds with long-chain molecular structure have been prepared (most of them are new).The dipole moments of four α,ω-bis(p-methoxyphenylthio)alkanes and five α,ω-bis(p-methoxyphenylsulphonyl)alkanes have been determined to find the effect of chain-length.In the case of sulphones, the observed values are compared with the values calculated for free rotation around all bonds intervening the end dipoles.The uv spectra of some 1,2-(distyrylsulphonyl)ethanes, and a number of α,ω-bis(arylsulphonyl)- and α,ω-bis(aryloxy)alkanes have been recorded to examine the applicability of the principle of chromophore additivity.
Phase transfer catalysis without solvent. Alkylation of phenol and derivatives
Loupy,Sansoulet,Diez-Barra,Carrillo
, p. 1465 - 1471 (2007/10/02)
The alkylation of phenol, hydroquinone and p-aminophenol is performed by phase transfer catalysis without solvent. High yields of α,ω-diphenoxyalkanes, hydroquinone diethers and high selective mono O-alkylation of p-aminophenol are obtained in very mild conditions.
