76686-19-6Relevant articles and documents
SYNTHESIS OF OPTICALLY ACTIVE 3-DIAZOACETYLRETINALS WITH TRIISOPROPYLPHENYLSULFONYLHYDRAZONE
Ok, Hyun,Caldwell, Charles,Schroeder, Daniel R.,Singh, Anil K.,Nakanishi, Koji
, p. 2275 - 2278 (1988)
An improved synthesis of photoaffinity labeled, optically active retinal derivatives is presented.A stable, easy to handle, glyoxalic acid 2,4,6-triisopropylphenylsulfonylhydrazone (TIPPS) reacts with 3-hydroxyretinal to give the diazoacetylretinal analog in satisfactory yield.
154. Synthese von optisch aktiven, natuerlichen Carotinoiden und strukturell verwandten Naturprodukten. V. Synthese von (3R,3'R)-, (3S,3'S)- und (3R,3'S; meso)-Zeaxanthin durch asymmetrische Hydroborierung. Ein neuer Zugang zu optisch aktiven Carotinoidba
Ruettimann, August,Mayer, Hans
, p. 1456 - 1462 (2007/10/02)
The synthesis of (3R,3'R)-, (3S,3'S)- and (3R,3'S; meso)-zeaxanthin (1), (19) and (21) is reported utilizing asymmetric hydroboration as the key reaction.Thus, safranol isopropenylmethylether (4) is hydroborated with (+)- and (-)-(IPC)2BH to give the opti