765-30-0 Usage
Chemical Properties
Cyclopropylamine is a colorless and transparent flammable liquid with volatility and ammonia odor. It is miscible with water, methanol, ethanol, benzene, toluene and other solvents.
Uses
Cyclopropylamine is used in the preparation of N-[4-(4-fluoro)phenyl-2-aminothiazol-5-yl]pyrimidin-2-yl-alkylamine derivatives. It is also used to prepare Pt(CPA)2(bismethylthiomethylenepropanedioate) and Pt(CPA)2(bisethylthiomethylenepropanedioate) complexes.
Definition
ChEBI: Cyclopropylamine is a primary aliphatic amine that consists of cyclopropane bearing a single amino substituent. It has a role as a mouse metabolite.
Application
Cyclopropylamine is mainly used in organic synthesis, pharmaceutical synthesis intermediates, and can be used in the synthesis of new antibacterial drugs ciprofloxacin products, such as the synthesis of ciprofloxacin, enrofloxacin, spafloxacin and other drugs. In addition, cyclopropylamine is also an important intermediate for the synthesis of pesticides, plant protection agents and herbicides, such as 2-chloro-4-6-cyclopropyl-s-triazine, cyprochlor, cyproterazine, cyprocyanine and other cyclopropanes class of pesticides.
Preparation
Cyclopropylamine is synthesized from 1,3-propanediol by bromination, cyanation, cyclization, amidation, and Hoffmann rearrangement. It is also synthesized with γ-butyrolactone and isopropanol by five steps of ring-opening esterification, cyclization, hydrolysis, acylation and Hofmann degradation.
Biochem/physiol Actions
Cyclopropylamine inactivates cytochrome P450 enzymes by a mechanism involving initial one-electron oxidation at nitrogen followed by scission of the cyclopropane ring leading to covalent modification of the enzyme. It is a mechanism-based inhibitor of quinoprotein methylamine dehydrogenase from Paracoccus denitrificans.
Purification Methods
It has been isolated as the benzamide m 100.6-101.0o (from aqueous EtOH). It forms a picrate m 149o (from EtOH/pet ether) from which the free base can be recovered using a basic ion-exchange resin and can then be distilled through a Todd column (p 11) using an automatic still head which only collects products boiling below 51o/atm. Polymeric materials if present will boil above this temperature. The hydrochloride has m 85-86o [Roberts & Chambers J Am Chem Soc 73 5030 1951, Jones J Org Chem 9 484 1944, Emmons J Am Chem Soc 79 6522 1957]. [Beilstein 12 IV 3.]
Check Digit Verification of cas no
The CAS Registry Mumber 765-30-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,6 and 5 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 765-30:
(5*7)+(4*6)+(3*5)+(2*3)+(1*0)=80
80 % 10 = 0
So 765-30-0 is a valid CAS Registry Number.
InChI:InChI=1/C3H7N/c4-3-1-2-3/h3H,1-2,4H2
765-30-0Relevant articles and documents
The Insertion Reaction of NH Singlet Radicals into the C-H Bonds of Cyclopropane and Isobutane in the Liquid Phase
Hamada, Jun-ich,Tsunashima, Shigeru,Sato, Shin
, p. 1739 - 1742 (1982)
Hydrogen azide was photolyzed in liquid cyclopropane at the temperature of Dry Ice-methanol.The main products observed were nitrogen, cyclopropylamine, and ammonia.The relative yields of the products depended slightly on the concentration of hydrogen azide.The results were then compared with those obtained with paraffin and olefin.The isobutane solution of hydrogen azide was photolyzed at 0 deg C.The products observed were the same as those obtained at the temperature of Dry-Ice-methanol.The relative yields of the products and the concentration dependence, however, were different.
Novel method and technology for synthesizing cyclopropyl ammonia
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Paragraph 0019, (2021/09/21)
The invention discloses a synthesis process route of a cyclopropane synthetic route. In the process route, cyanocyclopropane 1 - formic acid (-1 -) and (1) are subjected to hydrolysis under the action of a strong base to generate 1-cyanocyclopropane 1 - formic acid (-1 -), (2) decarboxylation to generate cyclopropanecarboxamide (2 3), and (4 4 3) subjected to Hoffman rearrangement to obtain the target product cyclopropysite. The process route is longer than the production process in the present stage, the reaction route is long, the use of high-temperature and high-pressure is avoided, the danger is reduced, and the safety is improved. The requirement of the reaction equipment is reduced, the used raw materials are easy to obtain, operation is easy, safety and environmental protection are achieved, and industrial production can be realized.
O -Phthalaldehyde catalyzed hydrolysis of organophosphinic amides and other P(O)-NH containing compounds
Li, Bin-Jie,Simard, Ryan D.,Beauchemin, André M.
supporting information, p. 8667 - 8670 (2017/08/10)
Over 50 years ago, Jencks and Gilchrist showed that formaldehyde catalyses the hydrolysis of phosphoramidate through electrophilic activation, induced by covalent attachment to its nitrogen atom. Given our interest in the use of aldehydes as catalysts, this work was revisited to identify a superior catalyst, o-phthalaldehyde, which facilitates hydrolyses of various organophosphorus compounds bearing P(O)-NH subunits under mild conditions. Interestingly, chemoselective hydrolysis of the P(O)-N bonds could be accomplished in the presence of P(O)-OR bonds.