Class information for:
Level 2: 2 PYRONE//DIAZENES//BENZIDINE REARRANGEMENT

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
3793 959 28.4 52%


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
1 3       CHEMISTRY, ORGANIC//TETRAHEDRON LETTERS//JOURNAL OF ORGANIC CHEMISTRY 237069
3793 2             2 PYRONE//DIAZENES//BENZIDINE REARRANGEMENT 959
20363 1                   2 PYRONE//BASE CATALYZED DIELS ALDER REACTION//BICYCLO222OCTENES 464
28222 1                   NANO2 ACETIC ANHYDRIDE//NANO2 NAHSO4 CENTER DOT H2O SIO2//AZOXYBENZENE 211
30430 1                   DIAZENES//DIAZENECARBOXAMIDE//DIAZENEDICARBOXAMIDES 169
34158 1                   BENZIDINE REARRANGEMENT//1 4 BIS1 NAPHTHYL BUTA 1 3 DIYNE//1 BIARYL 2 115

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 2 PYRONE authKW 198147 2% 33% 19
2 DIAZENES authKW 173402 2% 34% 16
3 BENZIDINE REARRANGEMENT authKW 120003 1% 54% 7
4 BASE CATALYZED DIELS ALDER REACTION authKW 95518 0% 100% 3
5 DIAZENECARBOXAMIDES authKW 95518 0% 100% 3
6 NANO2 ACETIC ANHYDRIDE authKW 95518 0% 100% 3
7 NANO2 NAHSO4 CENTER DOT H2O SIO2 authKW 95518 0% 100% 3
8 ARYL HYDRAZIDES authKW 79593 1% 50% 5
9 AZOXYBENZENE authKW 77642 1% 24% 10
10 ACYL DIAZENES authKW 63679 0% 100% 2

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 12324 51% 0% 488
2 Chemistry, Multidisciplinary 2176 32% 0% 307
3 Chemistry, Medicinal 78 3% 0% 33
4 Crystallography 61 3% 0% 27
5 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 43 1% 0% 10
6 Chemistry, Applied 20 2% 0% 21
7 Chemistry, Inorganic & Nuclear 16 3% 0% 25
8 Education, Scientific Disciplines 15 1% 0% 8
9 Chemistry, Analytical 8 3% 0% 28
10 Materials Science, Textiles 8 0% 0% 4

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 CHEM CHEM TECHNOL 54559 10% 2% 98
2 NSF ENGN BIORENEWABLE CHEM 46307 0% 36% 4
3 CAUDHILL KENAN S 31839 0% 100% 1
4 CHEM BIO BIOTECHNOLSHENZHEN 31839 0% 100% 1
5 EINEM PROJEKT 31839 0% 100% 1
6 ELE OPHOTON INTELLIGENT MAT 31839 0% 100% 1
7 ENGN FIBERS COLOR CHEM 31839 0% 100% 1
8 ENVIRONM SCI TECHNOL HIGH EDUC HENAN 31839 0% 100% 1
9 LANXESS ABSPALTUNG 31839 0% 100% 1
10 LINDESNES FABRIKKER 31839 0% 100% 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 CHEMIE IN UNSERER ZEIT 9602 2% 2% 17
2 HETEROCYCLES 5517 5% 0% 48
3 SYNTHETIC COMMUNICATIONS 5355 5% 0% 49
4 TETRAHEDRON LETTERS 2913 9% 0% 83
5 TETRAHEDRON 2004 5% 0% 49
6 JOURNAL OF ORGANIC CHEMISTRY 1746 6% 0% 54
7 SYNLETT 1373 3% 0% 25
8 SYNTHESIS-STUTTGART 1305 3% 0% 25
9 OXIDATION COMMUNICATIONS 1157 1% 0% 9
10 JOURNAL OF THE CHINESE CHEMICAL SOCIETY 1123 1% 0% 13

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 2 PYRONE 198147 2% 33% 19 Search 2+PYRONE Search 2+PYRONE
2 DIAZENES 173402 2% 34% 16 Search DIAZENES Search DIAZENES
3 BENZIDINE REARRANGEMENT 120003 1% 54% 7 Search BENZIDINE+REARRANGEMENT Search BENZIDINE+REARRANGEMENT
4 BASE CATALYZED DIELS ALDER REACTION 95518 0% 100% 3 Search BASE+CATALYZED+DIELS+ALDER+REACTION Search BASE+CATALYZED+DIELS+ALDER+REACTION
5 DIAZENECARBOXAMIDES 95518 0% 100% 3 Search DIAZENECARBOXAMIDES Search DIAZENECARBOXAMIDES
6 NANO2 ACETIC ANHYDRIDE 95518 0% 100% 3 Search NANO2+ACETIC+ANHYDRIDE Search NANO2+ACETIC+ANHYDRIDE
7 NANO2 NAHSO4 CENTER DOT H2O SIO2 95518 0% 100% 3 Search NANO2+NAHSO4+CENTER+DOT+H2O+SIO2 Search NANO2+NAHSO4+CENTER+DOT+H2O+SIO2
8 ARYL HYDRAZIDES 79593 1% 50% 5 Search ARYL+HYDRAZIDES Search ARYL+HYDRAZIDES
9 AZOXYBENZENE 77642 1% 24% 10 Search AZOXYBENZENE Search AZOXYBENZENE
10 ACYL DIAZENES 63679 0% 100% 2 Search ACYL+DIAZENES Search ACYL+DIAZENES

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 POZGAN, F , KOCEVAR, M , (2009) RING TRANSFORMATIONS OF 2H-PYRAN-2-ONES AND FUSED PYRAN-2-ONES WITH NUCLEOPHILIC REAGENTS.HETEROCYCLES. VOL. 77. ISSUE 2. P. 657-678 42 64% 8
2 KRANJC, K , KOCEVAR, M , (2013) REGIO- AND STEREOSELECTIVE SYNTHESES AND CYCLOADDITIONS OF SUBSTITUTED 2H-PYRAN-2-ONES AND THEIR FUSED DERIVATIVES.ARKIVOC. VOL. . ISSUE . P. 333 -363 44 46% 4
3 YANG, ZH , HOU, SL , HE, W , CHENG, BX , JIAO, P , XU, JX , (2016) REGIOSELECTIVITY OF THE ORTHO- AND PARA-SEMIDINE, AND DIPHENYLINE REARRANGEMENTS.TETRAHEDRON. VOL. 72. ISSUE 17. P. 2186 -2195 19 86% 0
4 POLANC, S , (2005) NEW SYNTHETIC APPLICATIONS AND BIOLOGICAL ACTIVITY OF DIAZENES.JOURNAL OF HETEROCYCLIC CHEMISTRY. VOL. 42. ISSUE 3. P. 401 -412 29 73% 12
5 WU, WQ , HE, SZ , ZHOU, XF , LEE, CS , (2010) DIELS-ALDER CYCLOADDITIONS OF 5-HYDROXY-2-PYRONES: 2H-PYRAN-2,5-DIONES AND 5-(TERT-BUTYIDIMETHYLSILYLOXY)-2-PYRONES AS SYNTHONS.EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. VOL. . ISSUE 6. P. 1124 -1133 31 57% 5
6 HREN, J , POLANC, S , KOCEVAR, M , (2008) THE SYNTHESIS AND TRANSFORMATIONS OF FUSED BICYCLO[2.2.2]OCTENES.ARKIVOC. VOL. . ISSUE . P. 209-231 31 60% 7
7 CUCEK, K , GOLOBIC, A , VERCEK, B , (2007) SIMPLE APPROACH TO SOME N-(5-HYDROXY-1-PHENYL-1H-PYRAZOL-4-YL)BENZAMIDES.HETEROCYCLES. VOL. 73. ISSUE 1. P. 555 -+ 21 91% 2
8 LEE, JS , (2015) RECENT ADVANCES IN THE SYNTHESIS OF 2-PYRONES.MARINE DRUGS. VOL. 13. ISSUE 3. P. 1581 -1620 33 36% 7
9 POLANC, S , KOCEVAR, M , JURANOVIC, A , KRANJC, K , PERDIH, F , (2011) COMPARISON OF THE REACTION PATHWAYS AND INTERMEDIATE PRODUCTS OF A MICROWAVE-ASSISTED AND HIGH-PRESSURE-PROMOTED CYCLOADDITION OF VINYL-MOIETY-CONTAINING DIENOPHILES ON 2H-PYRAN-2-ONES.TETRAHEDRON. VOL. 67. ISSUE 19. P. 3490 -3500 26 54% 5
10 TONG, H , LIU, B , (2014) A DIELS-ALDER APPROACH TOWARD THE SCAFFOLDS OF POLYCYCLIC SESQUITERPENOIDS WITH 2-PYRONE.SYNLETT. VOL. 25. ISSUE 5. P. 681 -686 26 48% 0

Classes with closest relation at Level 2


Rank Class id link
1 3789 VASICINE//NMR MOL MODELING//DEOXYVASICINONE
2 3722 PHOTOSENSITIVE DIAZO COMPOUND//DEDIAZONIATION//ARYL RADICALS
3 1211 DIETHYLZINC//TETRAHEDRON-ASYMMETRY//ASYMMETRIC CATALYSIS
4 2258 VICARIOUS NUCLEOPHILIC SUBSTITUTION//NUCLEOPHILIC SUBSTITUTION OF HYDROGEN//1 2 4 TRIAZINE
5 2990 1 2 OXAZINES//1 2 DIAZA 1 3 BUTADIENES//IST CHIM ORGAN
6 932 PHOTOCHROMISM//DIARYLETHENE//AZOBENZENE
7 1215 DEPROTECTION//1 1 DIACETATES//EPOXIDES
8 2011 HYDROGENATION//REDUCTIVE AMINATION//O CHLORONITROBENZENE
9 1991 QUINOLINE//IMINO DIELS ALDER REACTION//ISOCOUMARIN
10 151 CROSS COUPLING//PALLADIUM//C H ACTIVATION

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