a ref from Karel's translation; Chemicky Prumysl 22, 553 (1972)
Leminger, O.: Polish Pat. PV 3870z (May 25, 1971)
I can't find it on esp@cenet, there are two patents from him that have nothing to do w/ phenetylamines, he seems to have several research interests.
(Karel's voice:) This is Part 1* of Leminger's series "The Chemistry of Alkoxylated Phenethylamines". It contains a preparation of syringaldehyde by Reimer-Tiemann formylation of 2,6-dimethoxyphenol (33% yield), etherification
of that and other phenols with alkyl iodides (67-81%) and condensation of the resulting benzaldehydes with
nitromethane in ethanolic KOH (55-67%).
*: Leminger, O.: Chem. Prum. 22, 496 (1972)
Could possibly this part be made available too?