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1234616-51-3

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1234616-51-3 Usage

Uses

tert-butyl 7-oxo-2,6-diazaspiro[3.4]octane-2-carboxylate is a useful research chemical.

Check Digit Verification of cas no

The CAS Registry Mumber 1234616-51-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,4,6,1 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1234616-51:
(9*1)+(8*2)+(7*3)+(6*4)+(5*6)+(4*1)+(3*6)+(2*5)+(1*1)=133
133 % 10 = 3
So 1234616-51-3 is a valid CAS Registry Number.

1234616-51-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 7-Oxo-2,6-diazaspiro[3.4]octane-2-carboxylic acid tert-butyl ester

1.2 Other means of identification

Product number -
Other names tert-Butyl 7-oxo-2,6-diazaspiro[3.4]octane-2-carboxylate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1234616-51-3 SDS

1234616-51-3Downstream Products

1234616-51-3Relevant articles and documents

An improved procedure for the Beckmann rearrangement of cyclobutanones

Lachia, Mathilde,Richard, Fran?ois,Bigler, Raphael,Kolleth-Krieger, Amandine,Dieckmann, Michael,Lumbroso, Alexandre,Karadeniz, Ulfet,Catak, Saron,De Mesmaeker, Alain

, p. 1896 - 1901 (2018)

γ-Lactams are important building blocks for the synthesis of biologically active molecules and can easily be accessed via Beckmann rearrangement of cyclobutanones. However, Beckmann fragmentation is often a competing reaction for these strained ketones. We found that performing the Beckmann rearrangement with Tamura's reagent in the presence of aqueous HCl suppresses the undesired fragmentation reaction. This improved procedure was applied to a broad scope of substrates affording monocyclic, bicyclic, tricyclic or spirocyclic lactams. Our experimental results and DFT calculations suggest that the mechanism of the rearrangement probably involves a tetrahedral intermediate and doesn't proceed via oxime fragmentation as in a classical Beckmann rearrangement.

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