Browsing by Subject "Spirodienone route"

Now showing items 1-3 of 3

Direct access to upper rim substituted mono- and diaryloxy calix[4]arenes via bis(spirodienone) route

Sreeja, T; Jisha, B; Babukuttannair, A; Sreemathi, V; Luxmi Varma, R (Elsevier, 2010)

A seemingly ipso-like nucleophilic substitution of the upper rim of p-tert-butylcalix[4]arene is accomplished by an indirect method involving calix[4]arene derived bis(spirodienone). This method not only provides both mono ...
A novel method for the upper rim alkoxy-substitution of calix[4]arene via a bis(spirodienone) route

Sreeja, T; Bhagavathy, G V; Jijy, E; Luxmi Varma, R (Elsevier, 2009)

A mild and efficient one-step procedure for the upper rim modification of calix[4]arene via a bis(spirodienone) is described. The bis(spirodienone) on reaction with alcohols in the presence of p-TSA affords mono- and ...
Studies on the reactivity of calix[4]arene derived bis(spirodienone) with carbo- and hetero-dienophiles and dichlorocarbene: synthesis of highly functionalized macrocycles

Ganga, V B; Sreeja, T; Suresh, E; Luxmi Varma, R (Elsevier, 2007)

Calix[4]arene derived bis(spirodienone) can act as a 4 pi component in cycloaddition reaction with a variety of carbo- and heterodienophiles yielding the bisadducts in excellent to quantitative yields. Bis(spirodienone) ...

Now showing items 1-3 of 3

Search DSpace