(R,R)-1,3-Bis(4-bromobenzyl)-2-chlorooctahydro-2-(2E)-crotyl-1H-1,3,2-benzodiazasilole
(R,R)-1,3-Bis(4-bromobenzyl)-2-chlorooctahydro-2-(2E)-crotyl-1H-1,3,2-benzodiazasilole (CAS 804559-39-5) is a specialised organosilicon compound with the empirical formula C24H29Br2ClN2Si and a molecular weight of 568.85 g/mol. This chiral catalyst is primarily employed in asymmetric synthesis, contributing to the stereoselective formation of chemical products. Its complex structure makes it a valuable reagent in advanced chemical synthesis pathways, particularly for crotylation reactions.
- IUPAC
- (3aR,7aR)-1,3-Bis[(4-bromophenyl)methyl]-2-(2E)-2-buten-1-yl-2-chlorooctahydro-1H-1,3,2-benzodiazasilole
- Synonyms
- 3,2-benzodiazasilole,804559-39-5, C24H29Br2ClN2Si,(3aR,7aR)-1,3-Bis[(4-bromophenyl)methyl]-2-(2E)-2-buten-1-yl-2-chlorooctahydro-1H-1,3,2-benzodiazasilole

Asymmetric Synthesis
This compound serves as a chiral catalyst in asymmetric synthesis, enabling the creation of enantiomerically enriched molecules. It facilitates stereoselective transformations crucial for the production of complex organic compounds.
Chemical Synthesis Reagent
As a key intermediate and reagent in chemical synthesis, it is instrumental in constructing intricate molecular architectures. Its specific reactivity is leveraged in multi-step synthetic sequences.
Crotylation Reactions
The compound is particularly noted for its application in crotylation reactions, a process involving the addition of a crotyl group. This is vital for building specific carbon frameworks in organic chemistry.
Ligand in Catalysis
It functions as a ligand in catalytic systems, influencing the stereochemical outcome of reactions. Its design allows for fine-tuning of catalytic activity and selectivity in metal-mediated processes.
| Molecular weight | 568.85 |
|---|---|
| Empirical formula | C24H29Br2ClN2Si |
| Melting point | 92-96 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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 (R,R)-1,3-Bis(4-bromobenzyl)-2-chlorooctahydro-2-(2E)-crotyl-1H-1,3,2-benzodiazasilole used for?
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This compound is primarily used as a chiral catalyst in asymmetric synthesis and for crotylation reactions. It is also a valuable reagent in general chemical synthesis and can function as a ligand in catalytic processes.
What is the CAS number and empirical formula for this chemical?
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The CAS number is 804559-39-5, and the empirical formula is C24H29Br2ClN2Si.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product as a research-grade chemical. We do not represent it as USP, BP, or EP grade.
What are the safety and handling considerations for this compound?
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This compound is classified as a Warning. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Always handle in a well-ventilated area, wear appropriate personal protective equipment including gloves, eye protection, and respiratory protection. Avoid inhalation of dust and contact with skin and eyes.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions professionally packs and ships this chemical globally, adhering to all necessary regulations for safe transport. We are experienced exporters of fine chemicals and laboratory reagents.
How can I request a sample or a quote for this product?
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To request a sample or obtain a quote, please contact our sales department via the website or by phone. Please reference the product name and CAS number (804559-39-5) in your inquiry.
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