@article{381, author = {P. Molnár and E. Osz and Ferenc Zsila and Miklós Simonyi and J. Deli}, title = {Preparation of partially acetylated carotenoids}, abstract = {Partially acetylated carotenoids were prepared from fully acetylated carotenoids by reaction with NaBH4, and were characterized by UV/VIS, CD, 1H-NMR and mass spectra. The 3,6 -diacetate, 3 ,6 -diacetate, and 6 -acetate 10-12, respectively, of (6 R)-capsanthol (=3R,3 S,5 R,6 R)-β,κ- carotene-3,3κ6κ-triol; 4) were obtained from (6 R)-capsanthol-3,3 ,6 -triacetate (9), and the 3- and 3 -acetates 13 and 14, respectively, of 4 from (6 R)-capsanthol 3,3 -diacetate (8). The utility of this method was also demonstrated by the preparation of zeaxanthin and lutein monoacetates 16, 19, and 20.}, year = {2002}, journal = {Helvetica Chimica Acta}, volume = {85}, pages = {2349-2357}, month = {2002}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0036377096&partnerID=40&md5=c80899d15576350c12a1d8fbd94d7d21}, note = {Cited By :1Export Date: 25 February 2016}, }