Inorganic reagents, solids

As an allergen for testing purposes, synthetic 3-pentadecylcatechol is more useful than natural poison ivy extracts (of which it is one component). A stable crystalline solid, it is efficiently prepared in pure form from readily available starting materials. Outline a reasonable synthesis of this compound from 2,3-dimethoxybenzaldehyde and any necessary organic or inorganic reagents. 

Table 15. Examples of Solid/Solid/Liquid Phase Transfer Catalysis with Solid Inorganic Reagents Reaction Catalyst Ref.

There are numerous possible support materials that can be adapted for so-called solid phase synthesis or for heterogenisation of inorganic reagents and catalysts3. We will... 

A chemical reagent added to the aqueous sample, added to the recipient solution, or built in the membrane can improve the separation or increase the concentration efficiency. If the reagent is built in, the membrane is called adsorptive or chemically active. If an inert solid membrane us used, an inorganic reagent or organic monometric or polymeric agent is added to the sample to obtain insoluble compounds of analytes. Different cellulose-based membranes (pore diameter 0.45-3.0 pm) have been utilized for the purpose. 

J.H. Clark, Catalysis of Organic Reactions by Supported Inorganic Reagents, VCH, New York, 1994 P. Laszlo (ed.). Preparative Chemistry using Supported Reagents, Academic, San Diego, 1987 K. Smith (ed.). Solid Supports and Catalysts in organic Synthesis, Ellis Horwood, Chichester, 1992. 

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