Class information for:
Level 1: INDOLIZINE//N YLIDES//PYRROLO1 2 BPYRIDAZINE

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
8637 1233 27.3 56%


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
1957 2             IMIDAZO1 2 APYRIDINE//INDOLIZINE//SYDNONES 5705
8637 1                   INDOLIZINE//N YLIDES//PYRROLO1 2 BPYRIDAZINE 1233

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 INDOLIZINE authKW 2000335 10% 63% 129
2 N YLIDES authKW 276654 1% 62% 18
3 PYRROLO1 2 BPYRIDAZINE authKW 225121 1% 91% 10
4 PYRIDINIUM N YLIDE authKW 220256 1% 68% 13
5 ORGAN CHEM CD NENITZESCU address 204361 3% 23% 36
6 PYRIDINIUM YLIDE authKW 182328 1% 41% 18
7 EA 2599 address 178287 1% 60% 12
8 INDOLIZINE DERIVATIVES authKW 167149 1% 75% 9
9 PYRIDAZINIUM N YLIDES authKW 148581 0% 100% 6
10 THIENO3 4 BINDOLIZINE authKW 148581 0% 100% 6

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 14843 49% 0% 608
2 Chemistry, Multidisciplinary 3424 35% 0% 432
3 Chemistry, Medicinal 710 8% 0% 96
4 Crystallography 407 6% 0% 68
5 Engineering, Chemical 132 6% 0% 71
6 Chemistry, Inorganic & Nuclear 16 2% 0% 30
7 Spectroscopy 9 1% 0% 18
8 Chemistry, Applied 4 1% 0% 17
9 Pharmacology & Pharmacy 4 4% 0% 49
10 Chemistry, Physical 2 5% 0% 56

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 ORGAN CHEM CD NENITZESCU 204361 3% 23% 36
2 EA 2599 178287 1% 60% 12
3 SYNTHESE ORGAN ENVIRONM 117982 1% 53% 9
4 SYNTH ORGAN ENVIRONM 105106 1% 28% 15
5 JIANGSU BIOMED FUNCT MAT ENGN 68783 0% 56% 5
6 CHIM ORGAN BIOCHIM 63855 1% 37% 7
7 ORGAN BIOCHEM 54841 1% 18% 12
8 CERNESIM 49527 0% 100% 2
9 MOE ENGN BIOMASS MAT 49527 0% 100% 2
10 C IMM 48526 1% 28% 7

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 HETEROCYCLES 19125 8% 1% 101
2 REVUE ROUMAINE DE CHIMIE 18373 5% 1% 60
3 REVISTA DE CHIMIE 15332 5% 1% 61
4 ARKIVOC 3564 2% 1% 23
5 JOURNAL OF HETEROCYCLIC CHEMISTRY 3238 3% 0% 38
6 TETRAHEDRON 2834 5% 0% 66
7 ELECTRONIC JOURNAL OF THEORETICAL CHEMISTRY 1901 0% 4% 2
8 CHEMISTRY OF HETEROCYCLIC COMPOUNDS 1852 1% 1% 11
9 BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1448 3% 0% 33
10 CHEMICAL & PHARMACEUTICAL BULLETIN 1245 2% 0% 30

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 INDOLIZINE 2000335 10% 63% 129 Search INDOLIZINE Search INDOLIZINE
2 N YLIDES 276654 1% 62% 18 Search N+YLIDES Search N+YLIDES
3 PYRROLO1 2 BPYRIDAZINE 225121 1% 91% 10 Search PYRROLO1+2+BPYRIDAZINE Search PYRROLO1+2+BPYRIDAZINE
4 PYRIDINIUM N YLIDE 220256 1% 68% 13 Search PYRIDINIUM+N+YLIDE Search PYRIDINIUM+N+YLIDE
5 PYRIDINIUM YLIDE 182328 1% 41% 18 Search PYRIDINIUM+YLIDE Search PYRIDINIUM+YLIDE
6 INDOLIZINE DERIVATIVES 167149 1% 75% 9 Search INDOLIZINE+DERIVATIVES Search INDOLIZINE+DERIVATIVES
7 PYRIDAZINIUM N YLIDES 148581 0% 100% 6 Search PYRIDAZINIUM+N+YLIDES Search PYRIDAZINIUM+N+YLIDES
8 THIENO3 4 BINDOLIZINE 148581 0% 100% 6 Search THIENO3+4+BINDOLIZINE Search THIENO3+4+BINDOLIZINE
9 CYCLOIMMONIUM YLIDES 134820 1% 78% 7 Search CYCLOIMMONIUM+YLIDES Search CYCLOIMMONIUM+YLIDES
10 1 10 PHENANTHROLINIUM N YLIDE 123817 0% 100% 5 Search 1+10+PHENANTHROLINIUM+N+YLIDE Search 1+10+PHENANTHROLINIUM+N+YLIDE

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 KAKEHI, A , (2012) REACTIONS OF PYRIDINIUM N-YLIDES AND THEIR RELATED PYRIDINIUM SALTS.HETEROCYCLES. VOL. 85. ISSUE 7. P. 1529 -+ 75 82% 10
2 SADOWSKI, B , KLAJN, J , GRYKO, DT , (2016) RECENT ADVANCES IN THE SYNTHESIS OF INDOLIZINES AND THEIR PI-EXPANDED ANALOGUES.ORGANIC & BIOMOLECULAR CHEMISTRY. VOL. 14. ISSUE 33. P. 7804 -7828 70 70% 2
3 SINGH, GS , MMATLI, EE , (2011) RECENT PROGRESS IN SYNTHESIS AND BIOACTIVITY STUDIES OF INDOLIZINES.EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY. VOL. 46. ISSUE 11. P. 5237 -5257 65 66% 82
4 BRIOCHE, J , MEYER, C , COSSY, J , (2015) SYNTHESIS OF 2-AMINOINDOLIZINES BY 1,3-DIPOLAR CYCLOADDITION OF PYRIDINIUM YLIDES WITH ELECTRON-DEFICIENT YNAMIDES.ORGANIC LETTERS. VOL. 17. ISSUE 11. P. 2800 -2803 43 73% 14
5 KUCUKDISLI, M , OPATZ, T , (2014) TWO-STEP SYNTHESIS OF 2-AMINOINDOLIZINES FROM 2-ALKYLPYRIDINES.EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. VOL. . ISSUE 26. P. 5836 -5844 46 77% 2
6 LI, YQ , YANG, BC , SUN, Y , WANG, HY , LI, HP , FANG, S , NIU, XY , MA, C , (2013) A METAL-FREE TANDEM CYCLOADDITION STRATEGY FOR THE SYNTHESIS OF INDOLIZINES FROM PYRIDINE DERIVATIVES AND GAMMA-BROMO-CROTONATES UNDER MILD CONDITIONS.RSC ADVANCES. VOL. 3. ISSUE 44. P. 21418-21423 44 77% 1
7 POSTOLACHI, R , DANAC, R , BUURMA, NJ , PUI, A , BALAN, M , SHOVA, S , DELEANU, C , (2013) NEW CYCLOIMMONIUM YLIDE LIGANDS AND THEIR PALLADIUM(II) AFFINITIES.RSC ADVANCES. VOL. 3. ISSUE 38. P. 17260-17270 47 71% 2
8 WANG, C , HU, HY , XU, JF , KAN, WQ , (2015) ONE-POT SYNTHESIS OF INDOLIZINE VIA 1,3-DIPOLAR CYCLOADDITION USING A SUB-EQUIVALENT AMOUNT OF K2CR2O7 AS AN EFFICIENT OXIDANT UNDER BASE FREE CONDITIONS.RSC ADVANCES. VOL. 5. ISSUE 51. P. 41255 -41258 41 75% 3
9 BONTE, S , GHINEA, IO , DINICA, R , BAUSSANNE, I , DEMEUNYNCK, M , (2016) INVESTIGATION OF THE PYRIDINIUM YLIDE-ALKYNE CYCLOADDITION AS A FLUOROGENIC COUPLING REACTION.MOLECULES. VOL. 21. ISSUE 3. P. - 39 78% 0
10 ANTOCI, V , HUMELNICU, I , VASILACHE, V , MANTU, D , (2016) SYNTHESIS, STRUCTURE AND BIOLOGICAL ACTIVITY OF SOME HYBRID BENZIMIDAZOLE / QUINOLINE DERIVATIVES.REVISTA DE CHIMIE. VOL. 67. ISSUE 9. P. 1713 -1716 37 80% 0

Classes with closest relation at Level 1


Rank Class id link
1 34810 5 AMINOINDOLIZINES//OXAZOLO3 2 APYRIDINIUM SALTS//1H BENZ IMIDAZOLE
2 31910 PYRAZOLO1 5 APYRIDINE//CAS 94457 09 7//KC 764
3 33018 BENZONAPHTHYRIDINE N OXIDES//DIAZAPHENANTHRENES//ALPHA HALO CARBANIONS
4 24151 TRIAZOLOPYRIDINES//TRIAZOLOPYRIDINIUM YLIDES//PYRIDINIUM N AMINIDES
5 34900 CANTHARIDAE//LYCOCERUS//THEMUS
6 24692 QUATERNIZED POLYSULFONES//MODIFIED POLYSULFONES//FUNCTIONALIZED POLYSULFONE
7 29060 IMIDAZO1 5 APYRIDINE//5 APYRIDINES//THIOIMINIUM SALTS
8 13271 ALPHA OXOKETENE DITHIOACETALS//KETENE DITHIOACETALS//ALPHA ENOLIC DITHIOESTERS
9 35231 2 7 DISUBSTITUTED 1 6 METHANO10ANNULENES//2 7 METHANOAZA10ANNULENE DERIVATIVE//2 AMINO 1 6 METHANO10ANNULENE
10 5038 AZOMETHINE YLIDE//1 3 DIPOLAR CYCLOADDITION//SPIROPYRROLIDINES

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