56907-74-5

Upstream product

• 36541-35-2 Horminone 
• 66885-28-7 Acetic acid (4bS,8aS,10R)-1,3,10-triacetoxy-2-isopropenyl-4b,8,8-trimethyl-4b,5,6,7,8,8a,9,10-octahydro-phenanthren-4-yl ester 
• 6812-88-0 7-acetylhorminone 
• 74111-38-9 7α-methoxydeoxocryptojaponol 
• 6812-88-0 7α-acetoxyroyleanone 
• 66885-38-9 Acetic acid (4bS,8aS,10R)-1,3,10-triacetoxy-2-isopropyl-4b,8,8-trimethyl-4b,5,6,7,8,8a,9,10-octahydro-phenanthren-4-yl ester 

Relevant academic research and scientific papers

64. Synthese und Charakterisierung der 8 isomeren, im Ring B mono- bzw. dihydroxylierten Royleanone

The partial syntheses of 6α,7α-dihydroxyroyleanone (6a), 6α,7β-dihydroxyroyleanone (7a) and 6β,7β-dihydroxyroyleanone (9a) are described.Thus, all in ring B mono- and dihydroxylated royleanones are now known (see ), being fully characterized by extensive spectroscopic, chiroptic and chromatographic (HPLC.) methods.An opening of the epoxyroyleanone 11a yields cis- and trans-diols together with their corresponding mono- and di-O-acetyl derivatives.We postulate a reversible addition of the acetate ion at C(8) of the quinone system, followed by a neighbouring group participation of this O-acetyl group.