Boris Weinstein

The structure of δ-cadinol

Abstract Albicaulol, a crystalline cadinol isolated from the oleoresin of Pinus albicaulis and Pinus armandi, has been found to be identical with δ-cadinol. The structure of δ-cadinol has been shown to be Δ8-cadinene-3-ol rather than the Δ9-structure assigned by Motl, Sýkora, Herout and Sorm.

Amino acids and peptides. IX. Synthesis of a tetrapeptide sequence (A13-A16) of glucagon.

Author Institution: Department of Chemistry, Stanford University, Stanford, California 94305

Phytochemical studies. Part V. The synthesis of Taiwanin A

Conversion of dipiperonylidenesuccinic anhydride into the ethyl hydrogen ester, followed by reduction with lithium borohydride, gave a hydroxy-acid, which on treatment with toluene-p-sulphonic acid, produced taiwanin A.