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L511188

Sigma-Aldrich

(S)-2-(2,3-Bis(dicyclohexylamino)cyclopropenimine)-3-phenylpropan-1-ol hydrochloride

AldrichCPR

Synonym(e):

(βS)-β-[[2,3-bis(dicyclohexylamino)-2-cyclopropen-1-ylidene]amino]-benzenepropanol hydrochloride (1:1), Dicyclohexyl cyclopropenimine, Lambert Cyclopropenimine Catalyst

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About This Item

Empirische Formel (Hill-System):
C36H56ClN3O
CAS-Nummer:
Molekulargewicht:
582.30
MDL-Nummer:
UNSPSC-Code:
12352200
PubChem Substanz-ID:

SMILES String

Cl.OC[C@H](Cc1ccccc1)\N=C2\C(N(C3CCCCC3)C4CCCCC4)=C2N(C5CCCCC5)C6CCCCC6

InChI

1S/C36H55N3O.ClH/c40-27-29(26-28-16-6-1-7-17-28)37-34-35(38(30-18-8-2-9-19-30)31-20-10-3-11-21-31)36(34)39(32-22-12-4-13-23-32)33-24-14-5-15-25-33;/h1,6-7,16-17,29-33,40H,2-5,8-15,18-27H2;1H/t29-;/m0./s1

InChIKey

RTCSAEOYHXMTHG-JMAPEOGHSA-N

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Allgemeine Beschreibung

Learn More at the Professor and Product Portal of Professor Tristan Lambert.

Anwendung

Chiral cyclopropenimines are highly effective new class of enantioselective Brønsted base catalysts, the so-called “superbases” for enantioselective organocatalysis.

Due to the prevalence of chemical reactions involving proton transfer as a key mechanistic event, Brønsted bases have become indispensable tools for the practice of organic synthetic chemistry, capable of catalyzing proton transfer reactions enantioselectively for the production of optically enriched products.

Novel Brønsted bases provide potent yet tunable basicity to the acidity of a given substrate, are trivial to prepare, and offer unique opportunities for asymmetric transition state organization. The high basicity should allow them to catalyze a wide range of reactions (i.e. chiral pharmaceutical ingredients) and could lead to easier and faster syntheses of novel chiral compounds for drug discovery and other applications.

2,3-bis(dialkylamino)cyclopropenimines serve as a highly effective platform for chiral Brønsted base catalysis. Chiral 2,3-bis(dialkylamino)cyclopropenimine catalyzes the rapid Michael reaction of a glycine imine substrate with high levels of enantioselectivity. Catalysis with chiral cyclopropenimines should be amenable to relatively large-scale applications under mild reaction conditions.
Basicity of Cyclopropenimines

Sonstige Hinweise

Please note that Sigma-Aldrich provides this product to early discovery researchers as part of a collection of unique chemicals. Sigma-Aldrich does not collect analytical data for this product. Buyer assumes responsibility to confirm product identity and/or purity. All sales are final.

NOTWITHSTANDING ANY CONTRARY PROVISION CONTAINED IN SIGMA-ALDRICH′S STANDARD TERMS AND CONDITIONS OF SALE OR AN AGREEMENT BETWEEN SIGMA-ALDRICH AND BUYER, SIGMA-ALDRICH SELLS THIS PRODUCT "AS-IS" AND MAKES NO REPRESENTATION OR WARRANTY WHATSOEVER WITH RESPECT TO THIS PRODUCT, INCLUDING ANY (A) WARRANTY OF MERCHANTABILITY; (B) WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE; OR (C) WARRANTY AGAINST INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OF A THIRD PARTY; WHETHER ARISING BY LAW, COURSE OF DEALING, COURSE OF PERFORMANCE, USAGE OF TRADE OR OTHERWISE.

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable


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Die Dokumentenbibliothek aufrufen

Jeffrey S Bandar et al.
Journal of the American Chemical Society, 134(12), 5552-5555 (2012-03-16)
Cyclopropenimines are shown to be a highly effective new class of enantioselective Brønsted base catalysts. A chiral 2,3-bis(dialkylamino)cyclopropenimine catalyzes the rapid Michael reaction of a glycine imine substrate with high levels of enantioselectivity. A preparative scale reaction to deliver 25

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