111649-68-4

Basic information

• Product Name: (3R,3aS,5aR,6R,6aR,9aR,9bS,9cS)-3-[3-(tert-Butyl-diphenyl-silanyloxy)-propyl]-6,8,8-trimethyl-3,3a,5a,6,6a,9a,9b,9c-octahydro-5,7,9-trioxa-cyclopenta[e]acenaphthylen-4-one
• Synonyms: (3R,3aS,5aR,6R,6aR,9aR,9bS,9cS)-3-[3-(tert-Butyl-diphenyl-silanyloxy)-propyl]-6,8,8-trimethyl-3,3a,5a,6,6a,9a,9b,9c-octahydro-5,7,9-trioxa-cyclopenta[e]acenaphthylen-4-one
• CAS NO: 111649-68-4
• Molecular Weight: 560.806
• Mol File: 111649-68-4.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: (3R,3aS,5aR,6R,6aR,9aR,9bS,9cS)-3-[3-(tert-Butyl-diphenyl-silanyloxy)-propyl]-6,8,8-trimethyl-3,3a,5a,6,6a,9a,9b,9c-octahydro-5,7,9-trioxa-cyclopenta[e]acenaphthylen-4-one(CAS DataBase Reference)
• NIST Chemistry Reference: (3R,3aS,5aR,6R,6aR,9aR,9bS,9cS)-3-[3-(tert-Butyl-diphenyl-silanyloxy)-propyl]-6,8,8-trimethyl-3,3a,5a,6,6a,9a,9b,9c-octahydro-5,7,9-trioxa-cyclopenta[e]acenaphthylen-4-one(111649-68-4)
• EPA Substance Registry System: (3R,3aS,5aR,6R,6aR,9aR,9bS,9cS)-3-[3-(tert-Butyl-diphenyl-silanyloxy)-propyl]-6,8,8-trimethyl-3,3a,5a,6,6a,9a,9b,9c-octahydro-5,7,9-trioxa-cyclopenta[e]acenaphthylen-4-one(111649-68-4)

Safety Data

• Hazardous Substances Data: 111649-68-4(Hazardous Substances Data)

Upstream product

• 111649-65-1 (S)-2-{(4R,5R)-5-[(1E,3E)-7-(tert-Butyl-diphenyl-silanyloxy)-hepta-1,3-dienyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-propionic acid methyl ester 
• 111649-71-9 (E)-6-(2,2-dimethyl-1,1-diphenyl-1-silapropoxy)hex-2-en-1-ol 
• 111649-67-3 (3aR,4S,5aS,6S,7R,9aS,9bR)-7-[3-(tert-Butyl-diphenyl-silanyloxy)-propyl]-2,2,4-trimethyl-5-oxo-3a,4,5,5a,6,7,9a,9b-octahydro-naphtho[1,2-d][1,3]dioxole-6-carboxylic acid methyl ester 
• 118419-02-6 ((R)-3-{(4S,5R)-5-[(1E,3E)-7-(tert-Butyl-diphenyl-silanyloxy)-hepta-1,3-dienyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2-oxo-butyl)-phosphonic acid dimethyl ester 
• 118419-02-6 ((R)-3-{(4S,5R)-5-[(1Z,3Z)-7-(tert-Butyl-diphenyl-silanyloxy)-hepta-1,3-dienyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2-oxo-butyl)-phosphonic acid dimethyl ester 
• 111649-66-2 (E)-(R)-5-{(4S,5R)-5-[(1Z,3Z)-7-(tert-Butyl-diphenyl-silanyloxy)-hepta-1,3-dienyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-4-oxo-hex-2-enoic acid methyl ester 
• 111649-65-1 (R)-2-{(4S,5R)-5-[(1Z,3Z)-7-(tert-Butyl-diphenyl-silanyloxy)-hepta-1,3-dienyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-propionic acid methyl ester 
• 118490-89-4 tert-Butyl-[(4R,5S)-2,2-dimethyl-5-((S)-1-methyl-allyl)-[1,3]dioxolan-4-ylmethoxy]-dimethyl-silane 
• 111649-63-9 (R)-2-((4S,5S)-5-Formyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-propionic acid methyl ester 
• 118490-90-7 (R)-2-((4S,5R)-5-Hydroxymethyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-propionic acid methyl ester 
• 118490-88-3 (2R,3S,4S)-1-(tert-Butyl-dimethyl-silanyloxy)-4-methyl-hex-5-ene-2,3-diol 
• 100791-35-3 (2R,3S,4S)-4-Methyl-5-hexene-1,2,3-triol 
• 118437-04-0 (R)-2-[(4S,5R)-5-(tert-Butyl-dimethyl-silanyloxymethyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-propionic acid methyl ester 
• 88424-95-7 2,3-O-isopropylidene-1-C-<(1S)-1-methylprop-2-enyl>-D-erythro-glycerol 

Relevant articles and documents

Studies of an Intramolecular Diels-Alder Approach to the Nargenicins: Involvement of Boatlike Transition States in the Cyclizations of Substituted 1,7,9-Decatrien-3-ones

The intramolecular Diels-Alder reactions of a series of substituted decatrienones were examined in connection with a planned synthesis of the decalin framework of the nargenicin antibiotic family.The cyclization of triene 7 provided cis-fused cycloadduct 9 with very high diastereoselectivity through transition state 7Bboat with a boatlike conformation of the connecting chain.The Diels-Alder reactions of trienes 19-23 generated mixtures of cycloadducts, but again a high preference for cyclization through boatlike transition states was observed.The involvement of boatlike transition states in decatrienone intramolecular Diels-Alder reactions appears to be general.A detailed analysis is presented that shows that, assuming the transition state is early as suggested by numerous other investigations, the boat decatrienone transition state is actually free of destabilizing eclipsing or other unfavorable nonbonded steric interactions.The boat transition state in the decatrienone cis-fused manifold is favored over the chairlike arrangement in part as a consequence of a stabilizing eclipsing sp3-sp2 interaction between the diene and the allylic C-H bond, a relationship that is absent from the chair transition state.