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900403

Sigma-Aldrich

SLAP HydroPyrrolopyrazine Reagent

Synonym(s):

(S)-(1-((Trimethylsilyl)methyl)pyrrolidin-2-yl)methanamine

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About This Item

Empirical Formula (Hill Notation):
C9H22N2Si
Molecular Weight:
186.37
UNSPSC Code:
12352103
NACRES:
NA.22

form

liquid

Quality Level

density

0.8846 g/mL

storage temp.

−20°C

Application

Silicon amine protocol (SLAP) reagents, in conjunction with aldehydes and ketones, form N-unprotected piperazines via photocatalytic cross-coupling with Ir[(ppy)2dtbbpy]PF6 (747769). Heteroaromatic, aromatic, and aliphatic aldehydes are well tolerated, as are structurally and stereochemically complex SLAP reagents. This product was introduced in collaboration with the Bode Research Group and provides a tin-free alternative to SnAP (tin amine protocol) reagents for piperazine synthesis.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

177.8 °F

Flash Point(C)

81 °C


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

900403-VAR:
900403-BULK:
900403-500MG:


Certificates of Analysis (COA)

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Sheng-Ying Hsieh et al.
ACS central science, 3(1), 66-72 (2017-02-06)
Redox neutral photocatalytic transformations often require careful pairing of the substrates and photoredox catalysts in order to achieve a catalytic cycle. This can limit the range of viable transformations, as we recently observed in attempting to extend the scope of
Moritz K Jackl et al.
Organic letters, 19(17), 4696-4699 (2017-08-17)
Photocatalytic coupling of aldehydes and silicon amine protocol (SLAP) reagents enables the simple, scalable synthesis of substituted morpholines, oxazepanes, thiomorpholines, and thiazepanes under continuous flow conditions. Key to the success of this process is the combination of an inexpensive organic
Sheng-Ying Hsieh et al.
Organic letters, 18(9), 2098-2101 (2016-04-22)
Silicon amine protocol (SLAP) reagents for photocatalytic cross-coupling with aldehydes and ketones to form N-unprotected piperazines have been developed. This blue light promoted process tolerates a wide range of heteroaromatic, aromatic, and aliphatic aldehydes and structurally and stereochemically complex SLAP

Protocols

The expanding class of SLAP reagents provides access to saturated N-heterocycles and aliphatic aldehydes and ketones without additional reagents or the generation of toxic byproducts.

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