메틸(1-)-4-피페리돈

메틸(1-)-4-피페리돈 속성

메틸(1-)-4-피페리돈 MSDS

1-Methyltetrahydropyridin-4(1H)-one-

메틸(1-)-4-피페리돈 C화학적 특성, 용도, 생산

화학적 성질

clear yellow to orange liquid

용도

1-Methyl-4-piperidone, are widely used in artificial fibre industry. They are polymerizable and used as nylon precursors. They have excellent applications as solvents and as intermediates for organic synthesis. They are used in the aqueous carrier medium and amide penetrants in inks and water soluble paints.

주요 응용

N-Methyl-4-piperidone can be used as a reactant to prepare:
Spiropiperidine rings by reacting with malononitrile and electrophiles or Michael acceptors.
(3E,5E)-1-Methyl-3,5-bis(phenylmethylene)-4-piperidinone by reacting with benzaldehyde via Michael addition, followed by intramolecular O-cyclization/elimination sequential reactions.
N,N′-Dimethylbispidinone by utilizing a double Mannich condensation method.

제조 방법

[JACS (1948) vol 70 p 1820] for the synthesis of 1-methyl-4-piperidone:
To a one-liter flask containing 350 ml of 20 % hydrochloric acid was added 86 g. of 1-methyl-3-carbethoxy-4-piperidone hyrdrochloride. After refluxing for one hour, the ferric chloride reagent gave no coloration. The solution was evaporated to dryness on a steam-bath at 10 mm. pressure. The solid product, heated at 100 °C for 4 hours at 0.1 mm and further dried over solid KOH for 24 hours, weighed 57.7 g, m.p. 80 - 120 °C.
Although this melting range goes above that of the pure comound 0.45 of crude material dissolved in 90 ml. of hot acetone gave 0.40 g of pure compoundd melting at 93 - 95 °C. Other samples of crude piperidone hydrochloride showed even higher melting points than the one mentioned above, yet this apperently impure material always gave good yields of sharp melting product when recrystallized.

Purification Methods

It is best purified by fractional distillation The hydrochloride of the hydrate (4-diol) has m 94.7-95.5o, but the anhydrous hydrochloride which crystallises from CHCl3/Et2O has m 165-168o (164-167o) and can also be obtained by sublimation at 120o/2mm. The oxime has m 130-132o (from Me2CO). The methiodide crystallises from MeOH, the crystals with 1MeOH have m 189-190o, and the solvent-free iodide has m 202-204o(dec). [Lyle et al. J Org Chem 24 342 1959, Bowden & Greeen J Chem Soc 1164 1952, Tomita Yakugaku Zasshi (J Pharm Soc Japan) 71 1053 1951, Beilstein 21 IIII/IV 3183, 21/6 V 419.]

메틸(1-)-4-피페리돈 준비 용품 및 원자재

원자재

준비 용품

메틸(1-)-4-피페리돈 공급 업체

공급자	전화	이메일	국가	제품 수	이점
sgtlifesciences pvt ltd	+8617013299288	dj@sgtlifesciences.com	China	12382	58
Anhui Yiao New Material Technology Co., Ltd	+86-199-55145978 +8619955145978	sales8@anhuiyiao.com	China	253	58
Henan Tengmao Chemical Technology Co. LTD	+8615238638457	salesvip2@hntmhg.com	China	415	58
Anhui Zhongda Biotechnology Co., Ltd	+8619956560829	justine@zhongda-biotech.com	China	300	58
hebei hongtan Biotechnology Co., Ltd	+86-86-1913198-3935 +8617331935328	sales03@chemcn.cn	China	951	58
Frapp's ChemicalNFTZ Co., Ltd.	+86 (576) 8169-6106	sales@frappschem.com	China	885	50
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
Beijing Cooperate Pharmaceutical Co.,Ltd	010-60279497	sales01@cooperate-pharm.com	CHINA	1811	55
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1807	55
Nanjing ChemLin Chemical Industry Co., Ltd.	025-83697070	product@chemlin.com.cn	CHINA	3012	60

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