Catalysts Ligands Chiral Oxazoline Ligands BOX Ligands

BOX Ligands

BOX ligands (bisoxazoline ligands) are chiral bidentate ligands featuring two oxazoline rings connected through a central carbon or aryl backbone. These ligands have become prominent in asymmetric catalysis due to their excellent ability to induce chirality and form stable complexes with a wide range of metals such as copper, iron, and zinc. BOX ligands are typically C₂-symmetric and coordinate to metal centers through the nitrogen atoms of the oxazoline rings. Their rigid structure and steric control around the metal center make them particularly effective in achieving high enantioselectivity. Additionally, BOX ligands are synthetically accessible and can be easily modified by changing the substituents on the oxazoline rings or the linker backbone. The electronic and steric properties of these ligands can be fine-tuned for specific catalytic applications, making them a versatile platform for ligand design. Due to their robustness and efficiency, BOX–metal complexes are also being explored in green chemistry applications and continuous flow catalysis.
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(4S,4'S)-2,2'-(Cyclopropane-1,1-diyl)bis(4-phenyl-4,5-dihydrooxazole)

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A746661573968-16-898%

(4S,4'S)-2,2'-(Cyclopropane-1,1-diyl)bis(4-phenyl-4,5-dihydrooxazole)

$109.00/10mg

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Bis[2-((4S)-4-tert-butyl-4,5-dihydrooxazol-2-yl)phenyl]amine

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A1258465485394-22-797%

Bis[2-((4S)-4-tert-butyl-4,5-dihydrooxazol-2-yl)phenyl]amine

$68.00/100mg

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Bis((4R,5S)-4,5-diphenyl-4,5-dihydrooxazol-2-yl)methane

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A1258425139021-82-297%

Bis((4R,5S)-4,5-diphenyl-4,5-dihydrooxazol-2-yl)methane

$34.00/100mg

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(1S)-2,2'-Bis((R)-4-phenyl-4,5-dihydrooxazol-2-yl)-1,1'-binaphthalene

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A1681633N/A95%

(1S)-2,2'-Bis((R)-4-phenyl-4,5-dihydrooxazol-2-yl)-1,1'-binaphthalene

$134.00/100mg

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(3aS,3a'S,8aR,8a'R)-2,2'-(1,3-Bis(4-(tert-butyl)phenyl)propane-2,2-diyl)bis(3a,8a-dihydro-8H-indeno[1,2-d]oxazole)(97%)

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A11478991435467-28-998% 99%ee

(3aS,3a'S,8aR,8a'R)-2,2'-(1,3-Bis(4-(tert-butyl)phenyl)propane-2,2-diyl)bis(3a,8a-dihydro-8H-indeno[1,2-d]oxazole)(97%)

$36.00/100mg

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2,2'-Bis[(4R)-4-Benzyl-2-Oxazoline]

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A339529141362-76-797% (99%ee)

2,2'-Bis[(4R)-4-Benzyl-2-Oxazoline]

$15.00/100mg

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(1S)-2,2'-Bis((S)-4-phenyl-4,5-dihydrooxazol-2-yl)-1,1'-binaphthalene

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A239901180981-81-197%

(1S)-2,2'-Bis((S)-4-phenyl-4,5-dihydrooxazol-2-yl)-1,1'-binaphthalene

$167.00/100mg

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6,6′-Bis(4-(S)-isopropyl-2-oxazolinyl)-2,2′-bipyridine

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A1167084147409-41-498%

6,6′-Bis(4-(S)-isopropyl-2-oxazolinyl)-2,2′-bipyridine

$77.00/100mg

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2,6-Bis((R)-4-(tert-butyl)-4,5-dihydrooxazol-2-yl)pyridine

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A754235185346-17-298% 99%ee

2,6-Bis((R)-4-(tert-butyl)-4,5-dihydrooxazol-2-yl)pyridine

$10.00/50mg

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(3aS,3'aS,8aR,8'aR)-2,2'-(1-Methylethylidene)bis[3a,8a-dihydro-8H-Indeno[1,2-d]oxazole

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A914148175166-51-598% 99%ee

(3aS,3'aS,8aR,8'aR)-2,2'-(1-Methylethylidene)bis[3a,8a-dihydro-8H-Indeno[1,2-d]oxazole

$25.00/100mg

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(4S,4'S)-2,2'-(Cyclopentane-1,1-diyl)bis(4-benzyl-4,5-dihydrooxazole)

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A2043541003886-05-297%

(4S,4'S)-2,2'-(Cyclopentane-1,1-diyl)bis(4-benzyl-4,5-dihydrooxazole)

$41.00/100mg

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2,6-Bis((4R,5S)-4,5-diphenyl-4,5-dihydrooxazol-2-yl)pyridine

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A1005964497172-36-897% (99%ee)

2,6-Bis((4R,5S)-4,5-diphenyl-4,5-dihydrooxazol-2-yl)pyridine

$18.00/50mg

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2,6-Bis((R)-4-phenyl-4,5-dihydrooxazol-2-yl)pyridine

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A362768128249-70-798% 99%ee

2,6-Bis((R)-4-phenyl-4,5-dihydrooxazol-2-yl)pyridine

$10.00/100mg

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Bis((S)-4-(tert-butyl)-4,5-dihydrooxazol-2-yl)methane

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A711722132098-54-598% 99%ee

Bis((S)-4-(tert-butyl)-4,5-dihydrooxazol-2-yl)methane

$47.00/100mg

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(3aR,3a'R,8aS,8a'S)-2,2'-(1,3-Diphenylpropane-2,2-diyl)bis(3a,8a-dihydro-8H-indeno[1,2-d]oxazole)

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A1147900394738-76-298% 99%ee

(3aR,3a'R,8aS,8a'S)-2,2'-(1,3-Diphenylpropane-2,2-diyl)bis(3a,8a-dihydro-8H-indeno[1,2-d]oxazole)

$30.00/50mg

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(3aS,3a'S,8aR,8a'R)-2,2'-(1,3-Bis(3,5-bis(trifluoromethyl)phenyl)propane-2,2-diyl)bis(5-(3,5-di-tert-butylphenyl)-3a,8a-dihydro-8H-indeno[1,2-d]oxazole)

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A17191453027623-09-997%

(3aS,3a'S,8aR,8a'R)-2,2'-(1,3-Bis(3,5-bis(trifluoromethyl)phenyl)propane-2,2-diyl)bis(5-(3,5-di-tert-butylphenyl)-3a,8a-dihydro-8H-indeno[1,2-d]oxazole)

$177.00/50mg

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(3aR,3a'R,8aS,8a'S)-2,2'-(1,3-Bis(3,5-di-tert-butylphenyl)propane-2,2-diyl)bis(3a,8a-dihydro-8H-indeno[1,2-d]oxazole)

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A17213072387715-06-095%

(3aR,3a'R,8aS,8a'S)-2,2'-(1,3-Bis(3,5-di-tert-butylphenyl)propane-2,2-diyl)bis(3a,8a-dihydro-8H-indeno[1,2-d]oxazole)

$115.00/100mg

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2,6-Bis((S)-4-(4-chlorophenyl)-4,5-dihydrooxazol-2-yl)pyridine

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A17213092241347-63-595%

2,6-Bis((S)-4-(4-chlorophenyl)-4,5-dihydrooxazol-2-yl)pyridine

$221.00/50mg

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2,6-Bis((S)-4-isopropyl-4,5-dihydrooxazol-2-yl)pyridine

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A159703118949-61-498% 99%ee

2,6-Bis((S)-4-isopropyl-4,5-dihydrooxazol-2-yl)pyridine

$10.00/250mg

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1,3-Bis((S)-4-((S)-sec-butyl)-4,5-dihydrooxazol-2-yl)benzene

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A285213131380-86-498%

1,3-Bis((S)-4-((S)-sec-butyl)-4,5-dihydrooxazol-2-yl)benzene

$156.00/100mg

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