A Preparation and Some of the Properties of trans-6,14-Dihydrolevopimaric Acid-6,14-endo-α,β-succinic Acid

Synthesis and enantiomeric recognition ability of 22-crown-6 ethers derived from rosin acid and BINOL

“…14 Fumaropimaric acid 3 was prepared according to the reported procedure. 15 The conversion of trimethyl esters to triols 4 and 5 was carried out by the reported procedure 16 and followed by ring closure with (R)-or (S)-ditosylate 1 in the presence of NaH in THF under high dilution conditions. In the final step, four 1,1 0 -binaphthyl-appended crown ethers were obtained via a regioselective ring formation reaction (Scheme 2) in over 11% yield.…”

16-Isopropyl-5,9-dimethyltetracyclo[10.2.2.01,10.04,9]hexadec-15-ene-5,13,14-trimethanol ethanol monosolvate

“…Nowadays, rosin and its Diels-Alder adducts have been developed as a feedstock for synthesizing various chemicals and intermediates. Maleopimaric acid was isolated from maleic anhydride modified rosin (Halbrook & Lawrence, 1958), and its crystal structure has been reported (Rao et al, 2008). The title compound C 24 H 40 O 3 .…”

16-Isopropyl-5,9-dimethyltetracyclo[10.2.2.01,10.04,9]hexadec-15-ene-5,13,14-tricarboxylic acid dimethylformamide disolvate

“…For various applications of rosin, see: Halbrook & Lawrence (1958). For the separation of the title compound, see: Aldrich (1971); Halbrook & Lawrence (1959); Song et al (2009).…”

“…As an abundant and renewable material, rosin is mainly known as additives and modifiers for various applications (Halbrook et al, 1958). Fumaric modified rosin is one of modified products of rosin.…”