(S,S)-1,3-Bis(4-bromobenzyl)-2-chlorooctahydro-2-(2E)-crotyl-1H-1,3,2-benzodiazasilole
(S,S)-1,3-Bis(4-bromobenzyl)-2-chlorooctahydro-2-(2E)-crotyl-1H-1,3,2-benzodiazasilole (CAS: 1072220-37-1) is a complex organosilicon compound with the molecular formula C24H29Br2ClN2Si and a molecular weight of 568.85 g/mol. This chiral catalyst is primarily utilised in asymmetric synthesis and crotylation reactions within chemical synthesis research. It serves as a valuable tool for stereoselective transformations in organic chemistry, aiding in the development of novel molecules.
- IUPAC
- (3aS,7aS)-1,3-Bis[(4-bromophenyl)methyl]-2-(2E)-2-buten-1-yl-2-chlorooctahydro-1H-1,3,2-benzodiazasilole
- Synonyms
- 3,2-benzodiazasilole,1072220-37-1, C24H29Br2ClN2Si,(3aS,7aS)-1,3-Bis[(4-bromophenyl)methyl]-2-(2E)-2-buten-1-yl-2-chlorooctahydro-1H-1,3,2-benzodiazasilole

Asymmetric Synthesis
This compound is employed as a chiral catalyst to induce stereoselectivity in chemical reactions. Its structure facilitates the formation of specific enantiomers, crucial in pharmaceutical and fine chemical development.
Crotylation Reactions
The molecule is specifically designed for crotylation, enabling the stereocontrolled introduction of a crotyl group into organic substrates. This is important for building complex molecular architectures with defined stereochemistry.
Chiral Ligand and Reagent
It functions as a chiral ligand or reagent in various organometallic and organic transformations. Its specific stereochemical configuration directs the outcome of catalytic 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 (S,S)-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 in asymmetric synthesis and crotylation reactions as a chiral catalyst or reagent. It aids in the stereoselective introduction of chemical groups.
What are the CAS number and formula for this compound?
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The CAS number is 1072220-37-1 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 for research and development purposes. The purity is not specified as pharmacopoeia grade. Please refer to the product specifications for available grades and purity.
How should this chemical be handled safely?
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This compound is classified as a Warning. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment in a well-ventilated area.
How is this chemical packed and shipped?
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This chemical is carefully packed according to industry standards for safe transportation and export. Specific packaging details can be provided upon request.
How can I request a sample or quote for this product?
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To request a sample or obtain a quotation, please contact our sales department via the website or directly by email or phone, specifying the product name and CAS number.
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