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144754-24-5

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  • BUTANOIC ACID, 3-HYDROXY-4-(TRIPHENYLMETHOXY)-, METHYL ESTER, (R)

    Cas No: 144754-24-5

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144754-24-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144754-24-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,7,5 and 4 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 144754-24:
(8*1)+(7*4)+(6*4)+(5*7)+(4*5)+(3*4)+(2*2)+(1*4)=135
135 % 10 = 5
So 144754-24-5 is a valid CAS Registry Number.

144754-24-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name BUTANOIC ACID, 3-HYDROXY-4-(TRIPHENYLMETHOXY)-, METHYL ESTER, (R)

1.2 Other means of identification

Product number -
Other names -

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

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More Details:144754-24-5 SDS

144754-24-5Relevant articles and documents

Total synthesis of ent-pavettamine

Bode, Moira L.,Fernandes, Manuel A.,Rousseau, Amanda L.,Zimuwandeyi, Memory

supporting information, p. 1440 - 1446 (2021/06/16)

Pavettamine, a plant toxin first isolated from Pavetta harborii in 1995, was previously identified as a polyamine with C2 symmetry and a 1,3-syn-diol moiety on a C10 carbon backbone – one of very few substituted polyamines to be isolated from nature. Its absolute configuration was later established by our first reported total synthesis in 2010. Herein we report the first total synthesis of the enantiomer of pavettamine, ent-pavettamine. The symmetrical structure of the molecule allows for the synthesis of a common C5 fragment that can be divergently transformed into two synthons for later convergent coupling to furnish the target carbon framework. Based on the success of the protocol we employed for the synthesis of the naturally occurring pavettamine, (S)-malic acid was again the starting material of choice for the synthesis of the two individual C5 fragments, with strategic differences in terminal-group manipulation allowing for the synthesis of ent-pavettamine rather than pavettamine. Chain extension and stereoselective ketone reduction were achieved using the (R)-methyl p-tolyl sulfoxide chiral auxiliary to give the desired 1,3-syn-diol C5 unit. A protecting-group strategy was also developed for the orthogonal protection of the alcohol and amine functional groups as they were unveiled. The functionalized C5 fragments were coupled via reductive amination revealing the C10 carbon backbone. Deprotection of the alcohol and amine functional groups successfully provided ent-pavettamine as a TFA salt.

Total Synthesis of the Oxopolyene Macrolide (-)-Marinisporolide C

Dias, Luiz C.,De Lucca, Emílio C.

supporting information, p. 6278 - 6281 (2016/01/09)

The first total synthesis of (-)-marinisporolide C was performed in 25 steps (longest linear sequence) and an overall yield of 1%. Due to the high degree of convergence and robustness, the C9-C35 fragment that corresponds to the polyol portion was obtaine

Total synthesis of solandelactones E and F, homoeicosanoids from the hydroid Solanderia secunda

White, James D.,Martin, William H.C.,Lincoln, Christopher,Yang, Jongtae

, p. 3481 - 3483 (2008/02/12)

Asymmetrie total syntheses of solandelactones E and F confirmed that hydroxyl configuration at C11 in these oxylipins had been misassigned and that the stereochemistry at this center should be reversed. Key steps in the synthesis involved a Nagao asymmetr

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