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4-ethyl-2-oxazolidinone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

140388-18-7

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140388-18-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140388-18-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,3,8 and 8 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 140388-18:
(8*1)+(7*4)+(6*0)+(5*3)+(4*8)+(3*8)+(2*1)+(1*8)=117
117 % 10 = 7
So 140388-18-7 is a valid CAS Registry Number.

140388-18-7Relevant academic research and scientific papers

Synthesis of 2-oxazolidinone catalyzed by palladium on charcoal: A novel and highly effective heterogeneous catalytic system for oxidative cyclocarbonylation of β-aminoalcohols and 2-aminophenol

Li, Fuwei,Xia, Chungu

, p. 542 - 546 (2004)

Oxidative cyclocarbonylation of β-aminoalcohols and 2-aminophenol to synthesize corresponding 2-oxazolidinones catalyzed by a Pd/C-I2 heterogeneous catalytic system has been developed which gave excellent selectivity and high turnover frequency (TOF) values 15 times larger than the best results previously reported. The catalyst could be reused for five times almost without losing its catalytic activity and selectivity. The effects of promoters, pretreatment, solvents, and reaction conditions have been investigated.

COMBINATION TREATMENTS COMPRISING ADMINISTRATION OF 1H-PYRAZOLO[4,3-B]PYRIDINES

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Page/Page column 119, (2019/07/19)

The present invention provides 1H-pyrazolo[4,3-b]pyridin-7-amines of formula (I) as PDE1 inhibitors together with a second compound useful in the treatment of a neurodegenerative disorder and their combined use as a medicament, in particular for the treatment of neurodegenerative and/or cognitive disorders.

COMBINATION TREATMENTS COMPRISING ADMINISTRATION OF 1H-PYRAZOLO[4,3-B]PYRIDINES

-

Page/Page column 115-116, (2019/07/19)

The present invention provides 1H-pyrazolo[4,3-b]pyridin-7-amines of formula (I) as PDE1 inhibitors together with a second compound which compound is useful in the treatment of a psychiatric disorder and their combined use as a medicament, in particular for the treatment of psychiatric and/or cognitive disorders.

1H-PYRAZOLO[4,3-B]PYRIDINES AS PDE1 INHIBITORS

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Page/Page column 110, (2018/09/25)

The present invention provides 1H-pyrazolo[4,3-b]pyridin-7-amines of formula (I) as PDE1 inhibitors and their use as a medicament, in particular for the treatment of neurodegenerative disorders and psychiatric disorders.

Synthesis of cyclic N-nitrourethanes by the simultaneous oxidative desulfurization and nitration of cyclic thiourethanes

Willer, Rodney L.,Campbell, Christopher G.,Storey, Robson F.

scheme or table, p. 421 - 423 (2012/06/18)

The reaction of five- and six-membered cyclic thiourethanes with acetyl nitrate results in a vigorous reaction that generates copious amounts of red-brown nitrogen oxide fumes and produces the corresponding cyclic N-nitrourethanes in high yields (>95%). The overall yield of the cyclic N-nitrourethanes starting from an aminoalcohol using the " thiourethane" route is superior to the conventional route going through the cyclic urethane. Copyright

Synthesis of some 2-Oxazolidinones in mild conditions

Bratulescu, George

experimental part, p. 929 - 930 (2011/12/15)

One step efficient protocol for the synthesis of 2-oxazolidinones in paste chemical medium is described under microwave activation with 80 % yield.

A novel way to chiral 2-oxazolidinones: selenium-catalyzed cyclocarbonylation of 2-aminoethanols

Li, Peng,Yuan, Xiaohua,Wang, Shudong,Lu, Shiwei

, p. 12419 - 12423 (2008/03/13)

Selenium-catalyzed cyclocarbonylation of 2-aminoethanols with CO under atmospheric pressure at 30 °C afforded 2-oxazolidinones in excellent yields without any other co-catalyst. The method was then applied to the syntheses of chiral 2-oxazolidinones and no racemization was detected.

Synthesis of 2-oxazolidinones by salen-Co-complexes catalyzed oxidative carbonylation of β-amino alcohols

Liu, Jian-Ming,Peng, Xin-Gao,Liu, Jian-Hua,Zheng, Shu-Zhan,Sun, Wei,Xia, Chun-Gu

, p. 929 - 932 (2008/02/04)

2-Oxazolidinones are synthesized in high yield by oxidative carbonylation of β-amino alcohols using salen-Co(II)/NaI or salen-Co(III)-I as a catalyst and using CO as the carbonyl source. Studies of functional group compatibility using a series of substituted salen-Co(II) or salen-Co(III)-I complexes demonstrate a broad tolerance of functionality during the carbonylation reaction.

A novel and efficient (NHC)CuI (NHC = N-heterocyclic carbene) catalyst for the oxidative carbonylation of amino compounds

Zheng, Shuzhan,Li, Fuwei,Liu, Jianming,Xia, Chungu

, p. 5883 - 5886 (2008/02/09)

Oxidative carbonylation of amino compounds to prepare corresponding 2-oxazolidinones, ureas, and carbamates selectively in the presence of (NHC)CuI without any additives was firstly achieved in good yields and selectivities.

Efficient synthesis of oxazolidin-2-one via (chitosan-Schiff base)cobalt(II)-catalyzed oxidative carbonylation of 2-aminoalkan-1-ols

Liu, Jianming,Sun, Wei,Zheng, Shuzhan,Xia, Chungu

, p. 1593 - 1598 (2008/02/09)

The (chitosan-Schiff base)cobalt(II) complex was found to be an efficient catalyst for the oxidative carbonylation (CO/O2) of 2-aminoalkan-1-ols 1 to give oxazolidin-2-ones 2, in the presence of NaI. The effects of promoters, temperature, solvents, and other reaction conditions were investigated in this study.

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