(11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine
(11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine (CAS: 1191447-90-1) is a chiral phosphine ligand with the molecular formula C22H17P and a molecular weight of 312.34. This compound is primarily utilised in asymmetric synthesis and as a chiral catalyst in various chemical transformations. Its specific optical activity makes it a valuable tool for enantioselective reactions in organic chemistry and pharmaceutical research.
- Synonyms
- 2′-e]phosphepine,1191447-90-1, C22H17P
![(11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine — chemical structure, CAS 1191447-90-1; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1191447-90-1.png&w=3840&q=75)
Asymmetric Synthesis
This chiral phosphine ligand is employed in asymmetric synthesis to achieve high enantioselectivity in various organic reactions. It plays a crucial role in creating stereochemically pure compounds.
Chiral Catalyst
As a chiral catalyst, (11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine facilitates enantioselective transformations, enabling the synthesis of chiral molecules with defined stereochemistry.
Ligand in Catalysis
The compound serves as a valuable ligand in transition metal-catalysed reactions, where its unique chiral structure influences the stereochemical outcome of the catalytic process.
| Molecular weight | 312.34 |
|---|---|
| Empirical formula | C22H17P |
| Assay | 97% |
| Optical activity | [α]22/D −376°, c = 0.5 in chloroform |
| Melting point | 156-161 °C |


Hazard statements
- H228Flammable solid
- H302Harmful if swallowed
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Flash point | >110 °C / >230 °F |
|---|---|
| Transport (UN / ADR) | UN 1325 4.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-22 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is (11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine used for?
+
(11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine is primarily used in asymmetric synthesis and as a chiral catalyst or ligand in various enantioselective chemical transformations.
What are the CAS number and molecular formula for this compound?
+
The CAS number is 1191447-90-1, and the molecular formula is C22H17P.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies (11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine with an assay of 97%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated in the product data.
How should (11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine be handled safely?
+
This compound is classified as flammable solid (H228) and harmful if swallowed (H302), with a signal word of Warning. Keep away from heat, sparks, and open flames (P210). Always consult the Safety Data Sheet (SDS) for comprehensive handling and safety information.
Is this chemical shipped internationally?
+
Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including (11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine, and can facilitate international shipments.
How can I request a sample or quote for this product?
+
To request a sample or a quotation for (11bR)-4,5-Dihydro-3H-dinaphtho[2,1-c:1′,2′-e]phosphepine, please contact the TSS sales department through our website or by phone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis