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4490-75-9

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4490-75-9 Usage

General Description

Ethanethiol, 2-phthalimido- is a chemical compound with the molecular formula C10H9NO4S. It is a thiol derivative of phthalimide, and is commonly used as a reagent in organic synthesis. It is known for its strong, unpleasant odor, and is used as a warning odorant in natural gas. The compound has also been studied for its potential applications in pharmaceuticals and as a building block in the synthesis of various organic compounds. Ethanethiol, 2-phthalimido- is a versatile chemical with various industrial and research applications.

Check Digit Verification of cas no

The CAS Registry Mumber 4490-75-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,9 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4490-75:
(6*4)+(5*4)+(4*9)+(3*0)+(2*7)+(1*5)=99
99 % 10 = 9
So 4490-75-9 is a valid CAS Registry Number.
InChI:InChI=1/C10H9NO2S/c12-9-7-3-1-2-4-8(7)10(13)11(9)5-6-14/h1-4,14H,5-6H2

4490-75-9SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(2-Mercaptoethyl)isoindoline-1,3-dione

1.2 Other means of identification

Product number -
Other names 2-(2-sulfanylethyl)isoindole-1,3-dione

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:4490-75-9 SDS

4490-75-9Relevant articles and documents

KINETIC STUDY OF THE FORMATION AND RUPTURE OF STABLE TETRAHEDRAL INTERMEDIATES. C-O, C-N and C-S BOND FORMATION

Nunez, Oswaldo,Rodriguez, Jose,Angulo, Larry

, p. 80 - 89 (1994)

Measured pseudo-first-order rate constants for intramolecular formation of tetrahedral intermediates from N-2-hydroxyethylphthalimide, N-2-aminoethylphthalimide and N-2-thioethylphthalimide at pH > 6 are reported.The reaction is specific and general base catalysed, with β(Bronsted) values 0.44, 0.52 and 0.52 respectively.From a plot of log kb (general base rate constants) vs γ' , β'nuc values of 0.01 (with OH- as specific base), 0.25 (with imidazole as general base) and 0.27 (with HPO42- as general base were obtained).The observed relationships pxy = υβ'nuc/ - υpKa = - υβ(Bronsted)/υγ' = 0.03 is supported by the predictions of an energy contour diagram, which, on extrapolation to a non-stable tetrahedral intermediate, predicts a late and slightly protonated transition state for the cleavage process.At pH 0.3 and α 0.1.A fast equilibrium between the intermediate and its N-protonated (amide) form is reached.The general base rupture of the latter is faster than that of the corresponding non-protonated intermediate by a factor of ca 1E9 - 1E10-fold.

Phenyliodine(III) Diacetate/I2-Mediated Domino Approach for Pyrrolo[1,4]Thiazines and 1,4-Thiazines by a One-Pot Morin Rearrangement of N,S-Acetals

Danton, Fanny,Othman, Mohamed,Lawson, Ata Martin,Moncol, Ján,Ghinet, Alina,Rigo, Beno?t,Da?ch, Adam

supporting information, p. 6113 - 6118 (2019/04/17)

An efficient domino transformation using a phenyliodine(III) diacetate (PIDA)/I2 combination towards Morin 1,4-thiazine compounds has been developed starting from N,S-acetals. The latter leads to “one-step” regioselective methylene insertion without the need for traditional sulfoxide intermediates in good yields. The reaction involves easily accessible N,S-acetals obtained from cost-effective basic ketones and cysteamine as starting materials. This process ultimately leads to 1,4-thiazines related to natural product and fused derivatives necessary for further QSAR study.

Multimetallic iridium-tin (Ir-Sn3) catalyst in N-acyliminium ion chemistry: Synthesis of 3-substituted isoindolinones via intra- and intermolecular amidoalkylation reaction

Maity, Arnab Kumar,Roy, Sujit

, p. 2627 - 2642 (2014/09/30)

The multimetallic iridium-tritin (Ir-Sn3) complex [Cp*Ir(SnCl3)2{SnCl2(H2O) 2}] (1) proved to be a highly effective catalyst towards C-OH bond activation of γ-hydroxylactams, leading to a nucleophilic substitution reaction known as the α-amidoalkylation reaction. Catalyst 1 can be easily synthesized from the reaction of (pentamethylcyclocyclopentadienyl)iridium dichloride dimer {[Cp*IrCl2]2} and tin(II) dichloride (SnCl2). In terms of catalyst loading, reaction conditions and yields of the product formed, 1 is found to be superior compared to classical Lewis acid catalysts. Different carbon (arenes, heteroarenes, allyltrimethylsilane, 1,3-dicarbonyls) and heteroatom (alcohols, thiols, amides and sulfonamides) nucleophiles have been successfully employed in the intramolecular and intermolecular alkylations, as well as in heterocyclization reactions. In the majority of cases good to excellent yields of 3-substituted isoindolinones and 5-substituted pyrrolidin-2-ones have been obtained. Besides, the reactions are also atom economical and salt free. It is proposed that the multimetallic Ir-Sn3 catalyst behaves as a mild and selective Lewis acid to activate the γ-hydroxylactam towards the formation of the N-acyliminium ion; the latter being trapped by potent nucleophiles leading to the desired products.

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