Meaning of "pyran" in the English dictionary

ETYMOLOGY OF THE WORD PYRAN

From pyro- + -an.

Etymology is the study of the origin of words and their changes in structure and significance.

PRONUNCIATION OF PYRAN

pyran  [ˈpaɪræn]

GRAMMATICAL CATEGORY OF PYRAN

Pyran is a noun.

A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES PYRAN MEAN IN ENGLISH?

Pyran

In chemistry, pyran, or oxine, is a six-membered heterocyclic, non-aromatic ring, consisting of five carbon atoms and one oxygen atom and containing two double bonds. The molecular formula is C5H6O. There are two isomers of pyran that differ by the location of the double bonds. In 2H-pyran, the saturated carbon is at position 2, whereas, in 4H-pyran, the saturated carbon is at position 4. 4H-Pyran was first isolated and characterized in 1962 via pyrolysis of 2-acetoxy-3,4-dihydro-2H-pyran. It was found too unstable, particularly in the presence of air. 4H-pyran easily disproportionates to the corresponding dihydropyran and the pyrylium ion, which is easily hydrolyzed in aqueous medium. Although the pyrans themselves have little significance in chemistry, many of their derivatives are important biological molecules, such as the pyranoflavonoids. The term pyran is also often applied to the saturated ring analog, which is more properly referred to as tetrahydropyran. In this context, the monosaccharides containing a six-membered ring system are known as pyranoses.

Definition of pyran in the English dictionary

The definition of pyran in the dictionary is an unsaturated heterocyclic compound having a ring containing five carbon atoms and one oxygen atom and two double bonds. It has two isomers depending on the position of the saturated carbon atom relative to the oxygen.

TRANSLATION OF PYRAN

Find out the translation of pyran to 25 languages with our English multilingual translator.

The translations of pyran from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «pyran» in English.

• Translator English - Chinese: 吡喃
• Translator English - Spanish: piran
• English: pyran
• Translator English - Hindi: pyran
• Translator English - Arabic: بيران
• Translator English - Russian: пиран
• Translator English - Portuguese: pirano
• Translator English - Bengali: pyran
• Translator English - French: pyranne
• Translator English - Malay: Pyran
• Translator English - German: pyran
• Translator English - Japanese: ピラン
• Translator English - Korean: 피란
• Translator English - Javanese: Pyran
• Translator English - Vietnamese: pyran
• Translator English - Tamil: பைரான்
• Translator English - Marathi: पायरण
• Translator English - Turkish: piran
• Translator English - Italian: pyran
• Translator English - Polish: piran
• Translator English - Ukrainian: піран
• Translator English - Romanian: piran
• Translator English - Greek: πυραν
• Translator English - Afrikaans: pyran
• Translator English - Swedish: pyran
• Translator English - Norwegian: Dvran

10 ENGLISH BOOKS RELATING TO «PYRAN»

Discover the use of pyran in the following bibliographical selection. Books relating to pyran and brief extracts from same to provide context of its use in English literature.

CRC Handbook of Data on Organic Compounds

... ethyl ester 24000 Pyran, 2-aminomethyl-23-dihydro: 24032 Pyran, 4-bromo-3- propyl-tetrahydro: 24001 2H-Pyran, 4-bromotetrahydro-3-propyl-: 24001 3- Pyrancarboxyic acid, 2,4-dimethyl-6-hydro-6- oxo,ethyl ester 24004 2- Pyrancarboxylic ...

David R. Lide, G.W.A. Milne, 1993

Science of Synthesis: Houben-Weyl Methods of Molecular ...

fi 2H-Pyran-2-ones, 6-alkoxy-3,4-diaryl- 289 fi 2H-Pyran-2-ones, 4-alkoxy-6-styryl - 314 fi 2H-Pyran-2-ones, 4-alkoxy-6-vinyl- 296 fi 2H-Pyran-2-ones, 5-alkyl- 292 fi 2H-Pyran-2-ones, 4,6-dialkyl- 301 2H-Pyran-2-ones, alkyl-, alkylation 313, 314 ...

Kamyar Afarinkia, Alexandru T. Balaban, Teodor Silviu Balaban, 2014

Encyclopedia of Food and Color Additives

2H-Pyran-2,4(3h)-dione, 3-acetyl-6-methyl-, sodium salt, 2549 2H-Pyran-2-one, 3 -acetyl-4-hydroxy-6-methyl, 788 2H-Pyran-2-one, 6-butyltetrahydro-, 1379 2H- Pyran-2-one, 5,6-dihydro-6-pentyl-, (RK 1367 4H-Pyran-4-one, 2-ethyl-3-hydroxy -, ...

George A. Burdock, 1997

Dictionary of Natural Products, Supplement 2

... 1 - octenyl)-2//-pyran-3-yl]-5-heptenoic acid, see T-10086 5-[Tetrahydro-4,6- dihydroxy-2-(3-hydroxy- 1 - octenyl)-2//-pyran-3-yl]-3-pentenoic acid, T-10027 2,3 ,9,10-Tetrahydro-5,9-dihydroxy-2-(4- hydroxyphenyl)-8,8-dimethyl-4//,8//- benzo[l  ...

John Buckingham, 1995

Benzoic Acids—Advances in Research and Application: 2013 Edition

... 5-Chloro-N-((1-(cyclohexylmethyl)piperidin-4-yl)methyl)1-isopropyl-6-met- hyl- 2-oxo-1,2-dihydropyridine-3-carboxamide; 5-Fluoro-N-((1-((4-hydroxytetrahydro- 2H-pyran-4-yl)methyl)piperidin4-yl)- methyl)-1-isopropyl-6-methyl-2-oxo-1 ...

‎2013

The Chemistry of Heterocyclic Compounds, Chromans and ...

l.Z-Dibromo-l,2-dihydro-3H-naphtho[2.1-b]pyran (59) has been prepared by the addition of bromine to 3H-naphtho[2.1-b]pyran (60) in ether. Similarly 1,2- dichloro-1.2-dihydro-3H-naphtho[2,l-b]pyran (61) is obtained by bubbling chlorine ...

Gwynn P. Ellis, Ian M. Lockhart, 2009

Toxic Substances Control Act (TSCA) Chemical Substance ...

[72162-53-9] C14H2o0 2li-Pyran, 2-(2bromoethoxy)tetrahydro [17739-45-6] C7H13Br02 2H -Iéyram 2-g10-chlorodecyl)oxyltetrahydro- [7131 7- 71 —0] 15Н29С1 2 2H-Pyran, 2-6(10ch1oro-3-decynyl)oxy]tetrahydro- [71673-29-5] 15H25Cl 2 ...

‎1980

I. Siletanylmethyllithium, an Ambiphilic Siletane. II. ...

All 5- and 3halopyrones show ambiphilic reactivity. Endo-products were highly preferred over exo-products in. 74. Dienophile Pyrone Diene Yield Ratio of cycloadductsa (conditions) (%) 5-endo 6-endo 5-exo 6-exo 5-Chloro-2(H)-pyran- 2-one ...

Mariya V. Kozytska, 2008

Handbook of Hydroxyacetophenones Set: Preparation and ...

... (Mallophenone), 207 [130435-29-9] 1-(3-Chloro-2,4,6-trihydroxyphenyl) ethanone, 33 [130471-75-9] 1-[4-(Benzoyloxy)-2,6-dihydroxyphenyl]ethanone, 327 [130600-90-7] 1-[2-Hydroxy-4,6-bis[(tetrahydro-2H-pyran-2-yl)oxy]phenyl] ethanone, ...

Robert Martin, 2005

Dictionary of Natural Products

1 1 - dione, see P-02008 6.7,8,9-Tetrahydro-6-hydroxymethyl- 1 ,6- dimethylphenanthrojl ,2-i]furan- 1 0, 1 1 - dione, see T-00075 > 3,4,5, 1 0-Te( rahydro-9-hydroxy- 1 -methyl-5, 1 0- dioxo- 1 //-naphtho[2,3-c]pyran-3-acetic acid, see N-00022 1 ...

John Buckingham, 1993

10 NEWS ITEMS WHICH INCLUDE THE TERM «PYRAN»

Find out what the national and international press are talking about and how the term pyran is used in the context of the following news items.

Grill'd forced to reinstate sacked worker

The decision means that Ms Pyran will now be able to attend a Fair Work Commission hearing on Thursday where she will fight to have the existing wage ... «NEWS.com.au, Jul 15»

Detecting phase transitions in an optical microcavity

A small amount (≃1wt%) of fluorescent dye—4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM)—was mixed with the liquid crystal before ... «SPIE Newsroom, Jun 15»

Happy St Piran's Day to one and all: PICTURES

Saint Piran or Pyran (Cornish: Peran) was an early 6th-century Cornish abbot and saint, supposedly of Irish origin. He is the patron saint of tin-miners, and is ... «Falmouth Packet, Mar 15»

Fire resistant glass market sees Europe leading the way as tough …

SCHOTT's PYRAN fire resistant glass has been utilised here for applications ranging from roof and façade construction to partitions, doors and smoke screens. «Companiesandmarkets.com, Feb 15»

Throughout Europe: Fire resistant glazing with SCHOTT PYRAN® S …

Fire resistant glazing with PYRAN® S from the German specialty glass producer SCHOTT has many talents. They comply with the common European fire ... «Glass on Web, Jan 15»

Butt joint glazing with SCHOTT PYRANOVA® specialty glass inside …

Furthermore, SCHOTT also offers its fire-resistant glazing with PYRAN® S in XXL format in the class E 30. 1800 mm x 3600 mm in size, it is considered to be the ... «Glass on Web, Oct 14»

Creative Edge Nutrition Inc. (FITX) Announces the Appointment of Dr …

Design, synthesis, and activity of novel cis- and trans-3,6-disubstituted pyran biomimetics of 3,6-disubstituted piperidine as potential ligands for the dopamine ... «Yahoo News, Jun 14»

Vidalia man airlifted after motorcycle crash

Fred W. Taylor, 46, of Vidalia, was driving his 2010 Harley Davidson Monday at approximately 8:30 p.m. when a 2003 Chevy Montecarlo driven by Pyran K. «Natchez Democrat, Mar 14»

Maps by Piri Reis to be exhibited in Slovenia

“His maps also show the Slovenian cities of Koper, Pyran and Izola. This is ... the Turkish Underwater Archaeology Foundation (TINA) and Pyran Municipality. «Hurriyet Daily News, Mar 14»

論文の紹介： 植物の灰や煙に含まれる化学物質が種子の発芽と幼植物 …

... 成分を単離し、各種の機器分析により解析した結果、その化学構造は 3-methyl-2H-furo [2,3-c] pyran-2-one （図） だったという論文が、Science 誌に掲載されました。 «農業環境技術研究所, Oct 13»