1.3- Dihydroxy-5-pentyl benzene

In accordance with the invention the first step is to produce the intermediate 6,12-dihydro-6-hydroxy-cannabidiol which may also be termed 1,3-dihydroxy-2-[6-(l -hydroxy-1 -methyl-ethyl)-3-methyl-2-cyclohexene-l-yl]-5-pentyl-benzene. This compound is denoted I in the above scheme. 

Neofuscelia depsidella From 2-hydroxy-4-methoxy-6-n-pentyl-benzoic acid and 1,3-dihydroxy-5-n-pentyl-benzene with DCCD (267)... 

Obtained by dehydration of 4,6-dihydroxy-2-( 1 -hydroxy-1 -methylethyl)-7-isobutyryl-5-iso-pentyl-2,3-dihydrobenzo[i>]furan (m.p. 150°) with p-toluenesulfo-nic acid in refluxing benzene under a stream of oxygen-free nitrogen for 20 h [8285], (54%) [8218]. 

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