Class information for:
Level 1: 4H PYRAN 4 ONE//OPEN CHAIN CROWN//HYDROXYMETHYL AND CARBOXALDEHYDE DERIVATIVES

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
31013 160 21.5 54%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
5 4 CHEMISTRY, ORGANIC//CHEMISTRY, INORGANIC & NUCLEAR//CHEMISTRY, MULTIDISCIPLINARY 1745167
9 3       CHEMISTRY, ORGANIC//JOURNAL OF HETEROCYCLIC CHEMISTRY//KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII 135847
2324 2             TERT AMINO EFFECT//ALPHA OXOKETENE DITHIOACETALS//FAK CHEM ORGAN CHEM 4461
31013 1                   4H PYRAN 4 ONE//OPEN CHAIN CROWN//HYDROXYMETHYL AND CARBOXALDEHYDE DERIVATIVES 160

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 4H PYRAN 4 ONE authKW 2124199 10% 70% 16
2 OPEN CHAIN CROWN authKW 572541 2% 100% 3
3 HYDROXYMETHYL AND CARBOXALDEHYDE DERIVATIVES authKW 381694 1% 100% 2
4 ALLIXIN authKW 286267 2% 50% 3
5 4 PYRONE DERIVATIVES authKW 254461 1% 67% 2
6 1 2 6 TRIMETHYL 3 5 NONAMETHYLENEPYRIDINIUM authKW 190847 1% 100% 1
7 1H PYRAZOLO4 3 CPYRIDINES authKW 190847 1% 100% 1
8 1H PYRIDIN 4 ONE authKW 190847 1% 100% 1
9 2 4 6 HEPTANETRIONE authKW 190847 1% 100% 1
10 2 6 BIS POLYFLUOROALKYL 4H PYRAN 4 ONES authKW 190847 1% 100% 1

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Chemistry, Organic 1982 50% 0% 80
2 Chemistry, Medicinal 383 15% 0% 24
3 Chemistry, Multidisciplinary 271 28% 0% 45
4 Pharmacology & Pharmacy 69 14% 0% 23
5 Biotechnology & Applied Microbiology 26 7% 0% 11
6 Crystallography 13 3% 0% 5
7 Food Science & Technology 8 4% 0% 6
8 Microbiology 8 4% 0% 7
9 Chemistry, Inorganic & Nuclear 5 3% 0% 5
10 Immunology 2 4% 0% 6

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 BAYER CORP 95422 1% 50% 1
2 BIOL FUNCL 95422 1% 50% 1
3 CIENCIA INNOVAC TECNOL SABE 47710 1% 25% 1
4 DOW VENTURE 38168 1% 20% 1
5 OTC 33187 1% 9% 2
6 BIOINFORMAT CHEM GENOMSAKYO KU 23854 1% 13% 1
7 UNIV ONCOL PRINCIPADO ASTURIAS IUOPA 23854 1% 13% 1
8 CAS TROP MARINE BIO OURCES ECOLGUANG 21203 1% 11% 1
9 GUANGDONG MARINE MAT MEDSOUTH CHINA SEA 14679 1% 8% 1
10 LIFE SCI NAT PROD 14679 1% 8% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 JOURNAL OF FERMENTATION TECHNOLOGY 3748 3% 0% 4
2 CHEMISTRY OF HETEROCYCLIC COMPOUNDS 2974 3% 0% 5
3 JOURNAL OF HETEROCYCLIC CHEMISTRY 2962 8% 0% 13
4 JOURNAL OF ANTIBIOTICS 1025 4% 0% 6
5 IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION 902 1% 0% 2
6 CHEMICAL & PHARMACEUTICAL BULLETIN 699 5% 0% 8
7 INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY 690 4% 0% 6
8 HAKKOKOGAKU KAISHI-JOURNAL OF THE SOCIETY OF FERMENTATION TECHNOLOGY 624 1% 0% 1
9 ARKIVOC 467 2% 0% 3
10 JOURNAL OF FLUORINE CHEMISTRY 438 3% 0% 4

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 4H PYRAN 4 ONE 2124199 10% 70% 16 Search 4H+PYRAN+4+ONE Search 4H+PYRAN+4+ONE
2 OPEN CHAIN CROWN 572541 2% 100% 3 Search OPEN+CHAIN+CROWN Search OPEN+CHAIN+CROWN
3 HYDROXYMETHYL AND CARBOXALDEHYDE DERIVATIVES 381694 1% 100% 2 Search HYDROXYMETHYL+AND+CARBOXALDEHYDE+DERIVATIVES Search HYDROXYMETHYL+AND+CARBOXALDEHYDE+DERIVATIVES
4 ALLIXIN 286267 2% 50% 3 Search ALLIXIN Search ALLIXIN
5 4 PYRONE DERIVATIVES 254461 1% 67% 2 Search 4+PYRONE+DERIVATIVES Search 4+PYRONE+DERIVATIVES
6 1 2 6 TRIMETHYL 3 5 NONAMETHYLENEPYRIDINIUM 190847 1% 100% 1 Search 1+2+6+TRIMETHYL+3+5+NONAMETHYLENEPYRIDINIUM Search 1+2+6+TRIMETHYL+3+5+NONAMETHYLENEPYRIDINIUM
7 1H PYRAZOLO4 3 CPYRIDINES 190847 1% 100% 1 Search 1H+PYRAZOLO4+3+CPYRIDINES Search 1H+PYRAZOLO4+3+CPYRIDINES
8 1H PYRIDIN 4 ONE 190847 1% 100% 1 Search 1H+PYRIDIN+4+ONE Search 1H+PYRIDIN+4+ONE
9 2 4 6 HEPTANETRIONE 190847 1% 100% 1 Search 2+4+6+HEPTANETRIONE Search 2+4+6+HEPTANETRIONE
10 2 6 BIS POLYFLUOROALKYL 4H PYRAN 4 ONES 190847 1% 100% 1 Search 2+6+BIS+POLYFLUOROALKYL+4H+PYRAN+4+ONES Search 2+6+BIS+POLYFLUOROALKYL+4H+PYRAN+4+ONES

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 USACHEV, BI , (2015) 2-(TRIFLUOROMETHYL)-4H-PYRAN-4-ONES: CONVENIENT, AVAILABLE AND VERSATILE BUILDING-BLOCKS FOR REGIOSELECTIVE SYNTHESES OF TRIFLUOROMETHYLATED ORGANIC COMPOUNDS.JOURNAL OF FLUORINE CHEMISTRY. VOL. 172. ISSUE . P. 80 -91 13 72% 1
2 OBYDENNOV, DL , ROSCHENTHALER, GV , SOSNOVSKIKH, VY , (2014) SYNTHESIS OF 6-ARYL- AND 5-AROYLCOMANIC ACIDS FROM 5-AROYL-2-CARBETHOXY-4-PYRONES VIA A DEFORMYLATIVE REARRANGEMENT AND RING-OPENING/RING-CLOSURE SEQUENCE.TETRAHEDRON LETTERS. VOL. 55. ISSUE 2. P. 472 -474 15 58% 1
3 SHAHRISA, A , MOHAJERY, S , HASANZADEH, K , (2007) NEW PODAND DERIVATIVES OF 4H-PYRAN-4-ONES POSSESSING SULFUR ATOMS.ASIAN JOURNAL OF CHEMISTRY. VOL. 19. ISSUE 2. P. 999-1003 11 79% 0
4 USACHEV, BI , OBYDENNOV, DL , ROSCHENTHALER, GV , SOSNOVSKIKH, VY , (2012) 2-CYANO-6-(TRIFLUOROMETHYL)-4H-PYRAN-4-ONE: A NOVEL VERSATILE CF3-CONTAINING BUILDING BLOCK.JOURNAL OF FLUORINE CHEMISTRY. VOL. 137. ISSUE . P. 22 -26 12 52% 6
5 FU, P , ZHU, YG , MEI, XG , WANG, Y , JIA, HJ , ZHANG, CS , ZHU, WM , (2014) ACYCLIC CONGENERS FROM ACTINOALLOTEICHUS CYANOGRISEUS PROVIDE INSIGHTS INTO CYCLIC BIPYRIDINE GLYCOSIDE FORMATION.ORGANIC LETTERS. VOL. 16. ISSUE 16. P. 4264 -4267 10 56% 3
6 TEIMURI-MOFRAD, R , ABRISHAMI, F , (2008) SYNTHESIS OF SOME HYDROXYMETHYL DERIVATIVES OF 4H-PYRAN-4-ONES VIA N-O BOND CLEAVAGE.ASIAN JOURNAL OF CHEMISTRY. VOL. 20. ISSUE 2. P. 1203 -1210 8 80% 1
7 SIALER, C , GARCIA, I , GONZALEZ-SABIN, J , BRANA, AF , MENDEZ, C , MORIS, F , SALAS, JA , (2013) GENERATION BY MUTASYNTHESIS OF POTENTIAL NEUROPROTECTANT DERIVATIVES OF THE BIPYRIDYL COLLISMYCIN A.BIOORGANIC & MEDICINAL CHEMISTRY LETTERS. VOL. 23. ISSUE 20. P. 5707 -5709 7 78% 2
8 SHAHRISA, A , TABRIZI, R , ABRISHAMI, F , (2002) CHEMISTRY OF PYRONES: PART 6. SYNTHESIS OF SOME AMINOXYALKYL DERIVATIVES OF 6-PYRONES.ACTA CHIMICA SLOVENICA. VOL. 49. ISSUE 2. P. 347-354 10 71% 2
9 OBYDENNOV, DL , USACHEV, BI , (2012) REACTIONS OF 6-(TRI- AND 6-(DIFLUOROMETHYL))COMANIC ACIDS AND THEIR ETHYL ESTERS WITH ANILINE AND ITS 2-SUBSTITUTED DERIVATIVES.JOURNAL OF FLUORINE CHEMISTRY. VOL. 141. ISSUE . P. 41 -48 12 41% 3
10 SHAHRISA, A , SARAEI, M , (2009) SYNTHESIS OF PYRONE CARBALDEHYDES, PYRONE SULFONIUM YLIDES AND RELATED EPOXIDES.JOURNAL OF HETEROCYCLIC CHEMISTRY. VOL. 46. ISSUE 2. P. 268 -272 10 48% 1

Classes with closest relation at Level 1


Rank Class id link
1 34565 ACETYLENIC BETA DIKETONES//4 OXAZOLIN 2 ONE//SYNTHESIS AND STRUCTURE ELUCIDATION
2 28207 BEILSCHMIEDIA ERYTHROPHLOIA//BEILSCHMIEDIA MADANG//BEILSCHMIEDIA TSANGII
3 33890 BACTERIOPHAGE MB78//3 O METHYLFUNICONE//MINICELL EXPRESSION
4 22715 BORRELIDIN//HERBERT C BROWN S CHEM//DEOXYPROPIONATES
5 35981 ACID INDUCED INDOLE CYCLIZATION//22810 TAMAGAWA SETAGAYA KU//1 1 7 7 TETRAMETHOXY 4 HEPTANONE DERIVATIVE
6 34730 ATTENUATIVE//NITRIC ACID WATER SYSTEMS//NMR POWER SPECTRA
7 29931 DIPHENYLBORON CHELATES//BENZOYLCYANAMIDE//DIFLUOROBORON CHELATES
8 36322 5 HT2C AND 5 HT2A RECEPTORS//HALOSTEROL A//HALOSTEROL B
9 8556 NUQUIMHE//NUCLEO QUIM HETEROCICLOS NUQUIMHE//NUCLEO QUIM HETEROCICLOS
10 37706 INDOLONE N OXIDES//2 2 PYRIDYLISATOGEN//ISATOGENS

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