156578-22-2Relevant articles and documents
Strategic synthesis of model novolac resins
De Bruyn, Pauline J.,Lim, Audrey S. C.,Looney, Mark G.,Solomon, David H.
, p. 4627 - 4630 (1994)
Model novolac resins which contain the maximum number of free ortho positions for reaction with the curing agent hexamethylenetetramine (HMTA) have been prepared. The key transformation was the ion assisted ortho-specific phenol-formaldehyde oligomerization of suitably protected precursors.