956006-11-4

Basic information

• Product Name: (S)-3-((S)-1-((1R,2R,4R,5R)-4,5-bis(benzyloxy)-2-(hydroxymethyl)cyclohexyl)-3-(tert-butyldimethylsilyloxy)propan-2-ylamino)-4-benzyloxazolidin-2-one
• Synonyms: (S)-3-((S)-1-((1R,2R,4R,5R)-4,5-bis(benzyloxy)-2-(hydroxymethyl)cyclohexyl)-3-(tert-butyldimethylsilyloxy)propan-2-ylamino)-4-benzyloxazolidin-2-one
• CAS NO: 956006-11-4
• Molecular Weight: 688.98
• Mol File: 956006-11-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: (S)-3-((S)-1-((1R,2R,4R,5R)-4,5-bis(benzyloxy)-2-(hydroxymethyl)cyclohexyl)-3-(tert-butyldimethylsilyloxy)propan-2-ylamino)-4-benzyloxazolidin-2-one(CAS DataBase Reference)
• NIST Chemistry Reference: (S)-3-((S)-1-((1R,2R,4R,5R)-4,5-bis(benzyloxy)-2-(hydroxymethyl)cyclohexyl)-3-(tert-butyldimethylsilyloxy)propan-2-ylamino)-4-benzyloxazolidin-2-one(956006-11-4)
• EPA Substance Registry System: (S)-3-((S)-1-((1R,2R,4R,5R)-4,5-bis(benzyloxy)-2-(hydroxymethyl)cyclohexyl)-3-(tert-butyldimethylsilyloxy)propan-2-ylamino)-4-benzyloxazolidin-2-one(956006-11-4)

Safety Data

• Hazardous Substances Data: 956006-11-4(Hazardous Substances Data)

Upstream product

• 1020266-76-5 C₁₂H₁₄N₂O₃ 
• 956006-07-8 ((1R,2R,4R,5R)-4,5-bis(benzyloxy)-2-(iodomethyl)cyclohexyl)methanol 
• 299216-13-0 (S)-3-amino-4-benzyl-1,3-oxazolan-2-one 
• 73627-88-0 (1R,2R,1'S,2'R,5'S)-cyclohex-4-ene-1,2-dicarboxylic acid bis(2'-isopropyl-5'-methyl-cyclohexyl) ester 
• 956006-03-4 (1R,2R,4R,5R)-bis((1S,2R,5S)-2-isopropyl-5-methylcyclohexyl) 4,5-bis(benzyloxy)cyclohexane-1,2-dicarboxylate 
• 956006-35-2 (1R,2R,4R,5R)-bis((1S,2R,5S)-2-isopropyl-5-methylcyclohexyl) 4-(benzyloxy)-5-hydroxycyclohexane-1,2-dicarboxylate 
• 956006-34-1 (1S,3R,4R,6R)-3-((1S,2R,5S)-2-isopropyl-5-methylcyclohexyl) 4-((1S,2R,5S)-2-isopropyl-5-methylcyclohexyl) 7-oxabicyclo[4.1.0]heptane-3,4-dicarboxylate 
• 956006-09-0 (S,E)-4-benzyl-3-(2-(tert-butyldimethylsilyloxy)ethylideneamino)oxazolidin-2-one 

Downstream Products

• 956006-38-5 ((1R,2R,4R,5R)-2-((S)-2-((S)-4-benzyl-2-oxozolidin-3-ylamino)-3-(tert-butyldimethylsilyloxy)propyl)-4,5-bis(benzyloxy)cyclohexyl)mehyl 4-methylbenzenesulfonate 
• 1312224-65-9 N-((S)-1-((1R,2R,4R,5R)-4,5-bis(benzyloxy)-2-(hydroxymethyl)cyclohexyl)-3-(tert-butyldimethylsilyloxy)propan-2-yl)-2,2,2-trifluoroacetamide 
• 1312224-56-8 1-((3S,4aR,6R,7R,8aR)-6,7-bis(benzyloxy)-3-((tert-butyldimethylsilyloxy)methyl)octahydroisoquinolin-2-(1H)-yl)-2,2,2-trifluoroethanone 
• 207129-36-0 [(2S,4S,5R)-2-hydroxymethyl-5-vinyl-2-quinuclidine] 
• 1365034-52-1 2-((2S,4R,5R)-2-((tert-butyldimethylsilyloxy)methyl)-5-(2-hydroxyethyl)-1-(2,2,2-trifluoroacetyl)piperidin-4-yl)ethyl benzoate 
• 1365034-53-2 2-((3R,4R,6S)-6-((tert-butyldimethylsilyloxy)methyl)-4-(2-hydroxyethyl)-1-(2,2,2-trifluoroacetyl)piperidin-3-yl)ethyl benzoate 

Relevant articles and documents

Scope of stereoselective Mn-mediated radical addition to chiral hydrazones and application in a formal synthesis of quinine

Stereocontrolled Mn-mediated addition of alkyl iodides to chiral N-acylhydrazones enables strategic C-C bond constructions at the stereogenic centers of chiral amines. Applying this strategy to quinine suggested complementary synthetic approaches to construct C-C bonds attached at the nitrogen-bearing stereogenic center using multifunctional alkyl iodides 6a-d as radical precursors, or using multifunctional chiral N-acylhydrazones 26a-d as radical acceptors. These were included among Mn-mediated radical additions of various alkyl iodides to a range of chiral N-acylhydrazone radical acceptors, leading to the discovery that pyridine and alkene functionalities are incompatible. In a revised strategy, these functionalities are avoided during the Mn-mediated radical addition of 6d to chiral N-acylhydrazone 22b, which generated a key C-C bond with complete stereochemical control at the chiral amine carbon of quinine. Subsequent elaboration included two sequential cyclizations to complete the azabicyclo[2.2.2]octane ring system. Group selectivity between two 2-iodoethyl groups during the second cyclization favored an undesired azabicyclo[3.2.1]octane ring system, an outcome that was found to be consistent with transition state calculations at the B3LYP/6-31G(d) level. Group differentiation at an earlier stage enabled an alternative regioconvergent pathway; this furnished the desired azabicyclo[2.2.2]octane ring system and afforded quincorine (21b), completing a formal synthesis of quinine.

Quinine synthesis studies: A radical-ionic annulation via Mn-mediated addition to chiral N-acylhydrazones

A radical-ionic annulation approach to functionalized perhydroisoquinolines involving Mn-mediated coupling of alkyl iodides and chiral N-acylhydrazones was achieved using only 1.25 equiv of the alkyl iodide. Application of this reaction to alkene-containi