<![CDATA[STUDI APLIKASI METODE POTENSIOMETRI PADA PENENTUAN KANDUNGAN KARBON ORGANIK TOTAL TANAH Â A new indolo-cyclotriveratrylene: 1,4,7-trihydrocyclononano[2,3-b: 5,6-b: 8,9-b:]tri-1-benzylindole (21) was synthesized in good yield from the acid catalysed dehydration of 1-benzyl-3-hydroxymethylindole (20). The structure of the new indole cyclic trimer (21) was established by spectroscopy and microanalysis. The synthesis of the alcohol (20) was performed in two steps by alkylation of indole-3-carbaldehyde (18) followed by reduction with sodium borohydride.]]>
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