219954-67-3

Upstream product

• 219954-64-0 5-[(R)-1-((1aR,4S,4aR,7S,7aR,7bR)-4-Acetoxymethyl-1,1,7-trimethyl-1a,2,3,4,4a,7,7a,7b-octahydro-1H-cyclopropa[e]azulen-7-yl)-3-methyl-butyl]-2,4,6-trimethoxy-isophthalic acid dimethyl ester 
• 175985-37-2 (1aR,4S,7R,7aR,7bR)-4-(tert-Butyl-dimethyl-silanyloxymethyl)-1,1,7-trimethyl-1a,3,4,7,7a,7b-hexahydro-1H,2H-cyclopropa[e]azulen-6-one 
• 201207-43-4 (-)-(1S,2R,4R,7S)-10-(tert-butyldimethylsiloxy)-7-<(tert-butyldimethylsiloxy)methyl>-3,3,11-trimethyltricyclo<6.3.0.0^2,4>undeca-8,10-diene 
• 201207-50-3 (+)-dimethyl 5-<(1'S)-1'-((1R,2R,4R,7S,8R,10S,11S)-10-hydroxy-7-(hydroxymethyl)-3,3,11-trimethyltricyclo<6.3.0.0^2,4>undec-11-yl)-3'-methylbutyl>-2,4,6-trimethoxyisophthalate 
• 201207-49-0 (-)-dimethyl 5-<(1'S)-1'-((1R,2R,4R,7S,8R,11S)-7-(hydroxymethyl)-3,3,11-trimethyl-10-oxotricyclo<6.3.0.0^2,4>undec-11-yl)-3'-methylbutyl>-2,4,6-trimethoxyisophthalate 
• 201207-45-6 (+)-dimethyl 5-<(1'S)-1'-((1S,2R,4R,7S,11R)-7-<(tert-butyldimethylsiloxy)methyl>-3,3,11-trimethyl-10-oxotricyclo<6.3.0.0^2,4>undec-8-en-11-yl)-3'-methylbutyl>-2,4,6-trimethoxyisophthalate 

Downstream Products

• 142628-53-3 2,4,6-trihydroxy-5-((R)-3-methyl-1-((1aR,4aR,7S,7aR,7bR)-1,1,7-trimethyl-4-methylenedecahydro-1Hcyclopropa[e]azulen-7-yl)butyl)isophthalaldehyde 
• 201207-54-7 (+)-5-<(1'R)-1'-((1R,2R,4R,8R,11S)-3,3,11-trimethyl-7-methylenetricyclo<6.3.0.0^2,4>undec-11-yl)-3'-methylbutyl>-2,4,6-trimethoxybenzene-1,3-dimethanol 
• 201207-55-8 (+)-5-<(1'R)-1'-((1R,2R,4R,8R,11S)-3,3,11-trimethyl-7-methylenetricyclo<6.3.0.0^2,4>undec-11-yl)-3'-methylbutyl>-2,4,6-trimethoxyisophthalaldehyde 
• 201207-53-6 (+)-dimethyl 5-<(1'R)-1'-((1R,2R,4R,8R,11S)-3,3,11-trimethyl-7-methylenetricyclo<6.3.0.0^2,4>undec-11-yl)-3'-methylbutyl>-2,4,6-trimethoxyisophthalate 
• 201207-52-5 (-)-dimethyl 5-<(1'R)-1'-((1R,2R,4R,7S,8R,11S)-7-(hydroxymethyl)-3,3,11-trimethyltricyclo<6.3.0.0^2,4>undec-11-yl)-3'-methylbutyl>-2,4,6-trimethoxyisophthalate 

Relevant academic research and scientific papers

Total synthesis of (-)-macrocarpal C. Stereoselective coupling reaction with a novel hexasubstituted benzene Cr(CO)3 complex as a biomimetic chiral benzyl cation equivalent

The first total synthesis of (-)-macrocarpal C (3) is described. The synthesis features a highly stereoselective coupling reaction of silyldienol ether 6 with biomimetic benzyl cation species (R)- and (S)-B, which were generated from novel hexasubstituted benzene chromium tricarbonyl complexes (R)- and (S)-17. At the final step of the total synthesis, we developed the tris-O-demethylation of macrocarpal C trimethyl ether 34 under basic conditions using lithium p-thiocresolate. Moreover, spectroscopic evidence shows that the synthetic (-)-3 is identical to natural macrocarpal G (4).

First stereoselective total synthesis of macrocarpal C: Structure elucidation of macrocarpal G

The first stereoselective total synthesis of macrocarpal C is achieved via a coupling reaction of a silyl dienol ether with a novel hexasubstituted benzene chromium tricarbonyl complex as an optically active benzyl cation equivalent, thereby clarifying the identity of macrocarpal C and G.