For faster navigation, this Iframe is preloading the Wikiwand page for 四氢吡喃.

四氢吡喃

四氢吡喃
IUPAC名
oxane
别名 四氢吡喃 (tetrahydropyran)
氧杂环己烷 (oxacyclohexane)
缩写 THP
识别
CAS号 142-68-7  checkY
PubChem 8894
ChemSpider 8554
SMILES
 
  • C1CCCCO1
InChI
 
  • 1/C5H10O/c1-2-4-6-5-3-1/h1-5H2
InChIKey DHXVGJBLRPWPCS-UHFFFAOYAV
ChEBI 46941
DrugBank DB02412
KEGG C15345
性质
化学式 C5H10O
摩尔质量 86.13 g·mol⁻¹
密度 0.880 g/cm3
熔点 −45 °C (228 K)
沸点 88 °C(361 K)
溶解性 可溶于水(80.2g/L,20℃)
危险性
欧盟危险性符号
易燃易燃 F
有害有害 Xn
警示术语 R:R11, R36/37/38
安全术语 S:S9, S16, S26, S33, S36
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

四氢吡喃,又称氧杂环己烷,六元含氧的饱和杂环,分子式C5H10O。

四氢吡喃环存在于很多天然产物中。它是吡喃糖的结构核心。海洋生物毒素刺尾鱼毒素(Maitotoxin)分子中就含有28个四氢吡喃环。

制取

[编辑]

二氢吡喃雷尼镍存在下加氢[1]1,5-二溴戊烷与水在氧化锌作用下反应制备。

性质

[编辑]

无色易燃液体,有特殊气味。光照下生成爆炸性的有机过氧化物

用途

[编辑]

用作溶剂和合成中间体。2-四氢吡喃基可用作羟基保护基[2][3]

上保护基:2,3-二氢吡喃与醇、酚在酸催化下加成,得到α-四氢吡喃醚。

脱保护基:无机酸作用下水解为原来的醇和5-羟基戊醛。

上THP保护基

参见

[编辑]

参考资料

[编辑]
  1. ^ D. W. Andrus; John R. Johnson (1955). "Tetrahydropyran". Org. Synth.; Coll. Vol. 3: 794. 
  2. ^ R. A. Earl L. B. Townsend (1990). "Methyl 4-Hydroxy-2-butynoate". Org. Synth.; Coll. Vol. 7: 334. 
  3. ^ Arthur F. Kluge (1990). "Diethyl [(2-Tetrahydropyranyloxy)methyl]phosphonate". Org. Synth.; Coll. Vol. 7: 160. 
{{bottomLinkPreText}} {{bottomLinkText}}
四氢吡喃
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?