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392723

Sigma-Aldrich

(DHQ)2PHAL

≥95%

Sinónimos:

Hydroquinine 1,4-phthalazinediyl diether

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About This Item

Fórmula empírica (notación de Hill):
C48H54N6O4
Número de CAS:
140924-50-1
Peso molecular:
778.98
Beilstein:
5475677
Número MDL:
MFCD00191975
Código UNSPSC:
12352005
ID de la sustancia en PubChem:
24864480
NACRES:
NA.22

Nivel de calidad

200

Ensayo

≥95%

actividad óptica

[α]22/D +336°, c = 1.2 in methanol

mp

178 °C (dec.) (lit.)

cadena SMILES

CC[C@@H]1CN2CCC1CC2[C@H](Oc3nnc(O[C@@H](C4CC5CCN4C[C@@H]5CC)c6ccnc7ccc(OC)cc67)c8ccccc38)c9ccnc%10ccc(OC)cc9%10

InChI

1S/C48H54N6O4/c1-5-29-27-53-21-17-31(29)23-43(53)45(35-15-19-49-41-13-11-33(55-3)25-39(35)41)57-47-37-9-7-8-10-38(37)48(52-51-47)58-46(44-24-32-18-22-54(44)28-30(32)6-2)36-16-20-50-42-14-12-34(56-4)26-40(36)42/h7-16,19-20,25-26,29-32,43-46H,5-6,17-18,21-24,27-28H2,1-4H3/t29-,30+,31-,32+,43-,44-,45-,46-/m1/s1

Clave InChI

YUCBLVFHJWOYDN-PPIALRKJSA-N

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Descripción general

DHQ)2PHAL is a modified cinchona alkaloid.

Aplicación

(DHQ)2PHAL may be used in the following processes:
  • As a catalyst Asymmetric and chemoselective N-allylic alkylation of indoles with Morita-Baylis-Hillman carbonates to form pyrrolo[1,2-a]indole and pyrrolo[3,2,1-ij]quinoline derivatives.
  • As a ligand for the osmium catalyzed-Sharpless asymmetric dihydroxylation step of (S)-a-benzoyloxy carboxylic acids multistep synthesis.
  • As a ligand for the carbamate based asymmetric aminohydroxylation of styrene derivatives to form N-carbamate protected R-arylglycinols.
Ligand for Sharpless Asymmetric Dihydroxylation employed in an enantioselective preparation of syn-3,5-hydroxycarboxylates from (E,E)- or (E,Z)-1,3-dienoates.

Forma física

Asymmetric dihydroxylation of unsaturated esters with trisubstituted C=C bonds.

Pictogramas

Exclamation mark
GHS07

Palabra de señalización

Warning

Frases de peligro

H317

Consejos de prudencia

P280 - P302 + P352

Clasificaciones de peligro

Skin Sens. 1

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Faceshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
WXBF1096V
WXBD5623V
WXBD5386V
WXBD4931V
WXBD4545V

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Sigma-Aldrich

337714

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Troger’s Base 98%

132225

Troger′s Base

From styrenes to enantiopure a-arylglycines in two steps.
Reddy KL and Sharpless KB.
Journal of the American Chemical Society, 120(6), 1207-1217 (1990)
Kapferer, Tobias; Brueckner, Reinhard
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Regioselective Oxidative Cleavage of Benzylidene Acetals: Synthesis of a-and ?-Benzoyloxy Carboxylic Acids.
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Angewandte Chemie (International Edition in English), 49(4), 804-807 (2010)
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The Journal of organic chemistry, 71(20), 7741-7746 (2006-09-26)
The enantioselective syntheses of several protected 4-substituted syn-3,5-dihydroxy carboxylic esters have been achieved from the corresponding achiral (E,E)- or (E,Z)-1,3-dienoates. The route relies upon an enantio- and regioselective Sharpless dihydroxylation and a palladium-catalyzed reduction to form gamma-substituted delta-hydroxy-1-enoates. The resulting

Artículos

Cinchona Alkaloids

Asymmetric phase-transfer catalysis (PTC) has been recognized as a “green” alternative to many homogeneous synthetic organic transformations, and has found widespread application. Synthetically modified cinchona alkaloids are typical chiral organocatalysts used in asymmetric PTC.

Cinchona Alkaloids

Asymmetric phase-transfer catalysis (PTC) has been recognized as a “green” alternative to many homogeneous synthetic organic transformations, and has found widespread application. Synthetically modified cinchona alkaloids are typical chiral organocatalysts used in asymmetric PTC.

Cinchona Alkaloids

Asymmetric phase-transfer catalysis (PTC) has been recognized as a “green” alternative to many homogeneous synthetic organic transformations, and has found widespread application. Synthetically modified cinchona alkaloids are typical chiral organocatalysts used in asymmetric PTC.

Cinchona Alkaloids

Asymmetric phase-transfer catalysis (PTC) has been recognized as a “green” alternative to many homogeneous synthetic organic transformations, and has found widespread application. Synthetically modified cinchona alkaloids are typical chiral organocatalysts used in asymmetric PTC.

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