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110652-05-6

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110652-05-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 110652-05-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,6,5 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 110652-05:
(8*1)+(7*1)+(6*0)+(5*6)+(4*5)+(3*2)+(2*0)+(1*5)=76
76 % 10 = 6
So 110652-05-6 is a valid CAS Registry Number.

110652-05-6Relevant articles and documents

Coupling-Reagent-Free Synthesis of Dipeptides and Tripeptides Using Amino Acid Ionic Liquids

Furukawa, Shinya,Fukuyama, Takahide,Matsui, Akihiro,Kuratsu, Mai,Nakaya, Ryotaro,Ineyama, Takashi,Ueda, Hiroshi,Ryu, Ilhyong

, p. 11980 - 11983 (2015)

A general method for the synthesis of dipeptides has been developed, which does not require any coupling reagents. This method is based on the reaction of readily available HCl salts of amino acid methyl esters with tetrabutylphosphonium amino acid ionic liquids. The isolation procedure of stepwise treatment with AcOH is easy to carry out. The method was extended to the synthesis of tripeptide, tyrosyl-glycyl-glycine, present in IMREG-1, also.

Rapid, effective deprotection of tert-butoxycarbonyl (Boc) amino acids and peptides at high temperatures using a thermally stable ionic liquid

Bhawal, Sumit S.,Patil, Rahul A.,Armstrong, Daniel W.

, p. 95854 - 95856 (2015)

A method for high temperature Boc deprotection of amino acids and peptides in a phosphonium ionic liquid is described. The ionic liquid had low viscosity, high thermal stability and demonstrated a beneficial effect. The study extended the possibility for extraction of water soluble polar organic molecules using ionic liquids. Trace water significantly improved product purity and yield, while only 2 equiv. TFA led to deprotection within 10 min. The trityl group was also deprotected.

Grovestine et al.

, p. 1284 (1973)

Relative Partial Molar Enthalpies and Apparent Molar Volumes of Dipeptides in Aqueous Solution

Dyke, Shaun H.,Hedwig, Gavin R.,Watson, Ian D.

, p. 321 - 332 (1981)

Enthalpies of dilution at 25 deg C of aqueous solutions of the dipeptides glycylglycine, glycylalanine and alanylalanine have been determined and used to calculate the partial molar enthalpies of the solvent water in the solutions.The partial molar volumes of these dipeptides are also reported.The results are discussed in terms of the likely solute-solvent interactions.

The peptide formation mediated by cyanate revisited. N-carboxyanhydrides as accessible intermediates in the decomposition of N-carbamoylamino acids

Danger, Gregoire,Boiteau, Laurent,Cottet, Herve,Pascal, Robert

, p. 7412 - 7413 (2006)

Similar to many ureas, N-carbamoylamino acids were shown to be hydrolyzed in aqueous solution through elimination mechanisms at close to neutral pH, the nucleophilic attack of water being a minor process. Two competing elimination mechanisms can take place involving either cyanate or isocyanate transient intermediates. Peptide formation was observed and attributed to the latter pathway through the intermediacy of amino acid N-carboxyanhydride (NCA). Eventually, cyanate and its precursors (including urea) unexpectedly behave as amino acid activating agents because of their ability in amino acid carbamoylation. Owing to its ability to generate a background prebiotic production of NCAs on the primitive Earth, this reaction is suggested to have contributed to the origin of life process. Copyright

Mechanochemical Prebiotic Peptide Bond Formation**

Cindro, Nikola,Grube?i?, Sa?a,Hernández, José G.,Me?trovi?, Ernest,Stolar, Tomislav,U?arevi?, Krunoslav

supporting information, p. 12727 - 12731 (2021/05/07)

The presence of amino acids on the prebiotic Earth, either stemming from endogenous chemical routes or delivered by meteorites, is consensually accepted. Prebiotically plausible pathways to peptides from inactivated amino acids are still unclear as most oligomerization approaches rely on thermodynamically disfavored reactions in solution. Now, a combination of prebiotically plausible minerals and mechanochemical activation enables the oligomerization of glycine at ambient temperature in the absence of water. Raising the reaction temperature increases the degree of oligomerization concomitantly with the formation of a commonly unwanted cyclic glycine dimer (DKP). However, DKP is a productive intermediate in the mechanochemical oligomerization of glycine. The findings of this research show that mechanochemical peptide bond formation is a dynamic process that provides alternative routes towards oligopeptides and establishes new synthetic approaches for prebiotic chemistry.

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