ไพรีดีน
pai-rii-diinMeaning
1NounC2
pyridine (chemical)
A basic heterocyclic organic compound (C5H5N) with a six‑membered ring containing one nitrogen atom; a colorless liquid with a distinctive odor, used as a solvent and intermediate in chemical synthesis.
Examples
ไพรีดีนpai-rii-diinไพรีดีนpai-rii-diinpyridine (chemical)เป็นbpenเป็นbpen1to be (identity/category/state)2to become3[to] know how; be able to (skill)4[to] have; suffer from; be in (a condition)ของเหลวkɔ̌ɔng-lěeoของเหลวkɔ̌ɔng-lěeoliquid (substance)ใสsǎiใสsǎi1clear; transparent2bright; radiant (appearance)3pure; innocent (character)4clear; ringing (sound)ไม่มีmâi-miiไม่มีmâi-mii1to not have; lack2there is/are not; does/do not exist3[reply] we don't have it; out of stockสีsǐiสีsǐi1color2paint3[to] rub; scrub; polishแต่dtɛ̀ɛแต่dtɛ̀ɛ1but; however (contrast)2only; just (restriction)3from; since (starting point)มีmiiมีmii1[to] have; possess2there is/are; exist3[to] experience; undergoกลิ่นฉุนglìn-chǔnกลิ่นฉุนglìn-chǔnpungent smell; strong odorเฉพาะตัวchà-pɔ́-dtuuaเฉพาะตัวchà-pɔ́-dtuua1unique; distinctive2personal; individualที่tîiที่tîi1place; spot; seat; space2at; in; to (a place)3classifier: places; seats; individual servings4that/which/who (relative marker)5when; the time that (time marker)6ordinal markerรุนแรงrun-rɛɛngรุนแรงrun-rɛɛng1violent; severe; intense2violently; severely; intenselyมากmâakมากmâak1very; extremely2much; a lot; greatly3many; numerous
Pyridine is a colorless liquid, but it has a very strong, distinctive, pungent odor.
3 more examplesShow less
ในnaiห้องปฏิบัติการhɔ̂ng-bpà-dtì-bàt-gaanเคมีอินทรีย์kee-mii-in-siiเราraoมักmákใช้cháiไพรีดีนpai-rii-diinเป็นbpenตัวทำละลายdtuua-tam-lá-laaiและlɛ́เป็นbpenเบสbèetในnaiการเร่งปฏิกิริยาgaan-rêng-bpà-dtì-gì-rí-yaa
In the organic chemistry lab, we often use pyridine as a solvent and as a base to catalyze reactions.
โครงสร้างkroong-sâangของkɔ̌ɔngไพรีดีนpai-rii-diinซึ่งsʉ̂ngมีmiiอะตอมà-dtɔɔmไนโตรเจนnai-dtroo-jeenอยู่ในyùu-naiวงแหวนwong-wɛ̌ɛnทำให้tam-hâiมันmanมีสมบัติmii-sǒm-bàtเป็นbpenเบสbèetอ่อนɔ̀ɔnและlɛ́เป็นbpenนิวคลีโอไฟล์niu-klii-oo-faiที่ดีtîi-dii
The structure of pyridine, which has a nitrogen atom in its ring, gives it the properties of a weak base and a good nucleophile.
ขั้นตอนkân-dtɔɔnการสังเคราะห์gaan-sǎng-krɔ́ยาyaaตัวdtuuaนี้níiต้องdtɔ̂ngอาศัยaa-sǎiปฏิกิริยาดีไฮโดรฮาโลจิเนชันbpà-dtì-gì-rí-yaa-dii-hai-droo-haa-loo-jì-nee-chanซึ่งsʉ̂ngใช้cháiไพรีดีนpai-rii-diinทำหน้าที่tam-nâa-tîiเป็นbpenตัวเร่งปฏิกิริยาdtuua-rêng-bpà-dtì-gì-rí-yaaประเภทbprà-pêetเบสbèetที่tîiไม่mâiว่องไวwɔ̂ɔng-waiต่อdtɔ̀ɔนิวคลีโอไฟล์niu-klii-oo-fai
The synthesis step for this drug requires a dehydrohalogenation reaction, for which pyridine serves as a non-nucleophilic base catalyst.
Tones
See how the spelling sets each syllable's tone, step by step.
3 syllables · pick one to see its rule
How the tone is decided
- Consonant classLow class
- Tone markNo tone mark
- Syllable endingLive syllableThe vowel ไ hides a final -ย, so it is live.
Low class consonants
คฅฆงชซฌญฑฒณทธนพฟภมยรลวฬฮ
Result
Mid tone
pai
Level, in your normal speaking voice.
Low class + No tone mark + Live syllable → Mid
Tone chart
Every class and spelling pattern, with this syllable outlined.
| Mid class | High class | Low class | |
|---|---|---|---|
| No mark + live | Mid | Rising | Mid |
| No mark + dead short | Low | Low | High |
| No mark + dead long | Low | Low | Falling |
| Mai ek | Low | Low | Falling |
| Mai tho | Falling | Falling | High |
| Mai tri | High | — | — |
| Mai chattawa | Rising | — | — |