Class information for:
Level 1: 1 3 DIAZA 1 3 BUTADIENE//TRIALKYLSTANNYLAZINE//1 2 3 4 TETRAHYDROPYRIDO1 2 APYRIMIDIN 6 ONE METHYL

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
24427 312 24.3 42%


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
2258 2             VICARIOUS NUCLEOPHILIC SUBSTITUTION//NUCLEOPHILIC SUBSTITUTION OF HYDROGEN//1 2 4 TRIAZINE 4681
24427 1                   1 3 DIAZA 1 3 BUTADIENE//TRIALKYLSTANNYLAZINE//1 2 3 4 TETRAHYDROPYRIDO1 2 APYRIMIDIN 6 ONE METHYL 312

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 1 3 DIAZA 1 3 BUTADIENE authKW 293608 1% 100% 3
2 TRIALKYLSTANNYLAZINE authKW 195738 1% 100% 2
3 1 2 3 4 TETRAHYDROPYRIDO1 2 APYRIMIDIN 6 ONE METHYL authKW 97869 0% 100% 1
4 1 2 3 4 TETRAHYDROPYRROLO1 2 APYRIMIDIN 7 YLIDENEACETATE authKW 97869 0% 100% 1
5 1 2 6 THIADIAZINES authKW 97869 0% 100% 1
6 1 4 DIHYDRO 1 2 4 TRIAZINE authKW 97869 0% 100% 1
7 1 4 DIHYDROTETRAZINE 3 6 DICARBOXYLATES authKW 97869 0% 100% 1
8 2 3 5 8 TETRAHYDRO1 2 4TRIAZOLO4 3 APYRIMIDINE authKW 97869 0% 100% 1
9 2 4 6 TRIIODOANILINE authKW 97869 0% 100% 1
10 2 4 DIIODOANILINE authKW 97869 0% 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 5200 58% 0% 180
2 Chemistry, Multidisciplinary 826 34% 0% 107
3 Chemistry, Medicinal 175 8% 0% 24
4 Biochemistry & Molecular Biology 83 18% 0% 55
5 Pharmacology & Pharmacy 26 8% 0% 25
6 Crystallography 7 2% 0% 6
7 Imaging Science & Photographic Technology 3 1% 0% 2
8 Chemistry, Applied 1 1% 0% 4
9 Chemistry, Inorganic & Nuclear 0 2% 0% 5
10 Geology 0 0% 0% 1

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 CRIALLOG DIPOSITS MINERALS 97869 0% 100% 1
2 ORGAN REACT MECH 48934 0% 50% 1
3 SCI CHEM OTSUKA BUNKYO KU 48934 0% 50% 1
4 UIQOT 32622 0% 33% 1
5 PHARMBIOTEC GMBH 24466 0% 25% 1
6 PHARMACEUT AOBA KU 18638 1% 10% 2
7 DEV BIOL S YODOGAWA KU 16310 0% 17% 1
8 ASAMINAMI KU 10763 2% 2% 7
9 UNITAT ASSOCIADA QUIM FARMACEUT 9785 0% 10% 1
10 FLORIDA HETEROCYCL CPDS 4892 0% 5% 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 ACTA CHEMICA SCANDINAVICA SERIES B-ORGANIC CHEMISTRY AND BIOCHEMISTRY 51095 8% 2% 25
2 ACTA CHEMICA SCANDINAVICA 33111 8% 1% 26
3 JOURNAL OF HETEROCYCLIC CHEMISTRY 4751 7% 0% 23
4 HETEROCYCLES 4630 8% 0% 25
5 ADVANCES IN HETEROCYCLIC CHEMISTRY 2407 1% 1% 3
6 CHEMICAL & PHARMACEUTICAL BULLETIN 1435 5% 0% 16
7 MONATSHEFTE FUR CHEMIE 1279 3% 0% 9
8 SYNTHESIS-STUTTGART 1100 4% 0% 13
9 JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 1033 4% 0% 11
10 TETRAHEDRON LETTERS 948 9% 0% 27

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 1 3 DIAZA 1 3 BUTADIENE 293608 1% 100% 3 Search 1+3+DIAZA+1+3+BUTADIENE Search 1+3+DIAZA+1+3+BUTADIENE
2 TRIALKYLSTANNYLAZINE 195738 1% 100% 2 Search TRIALKYLSTANNYLAZINE Search TRIALKYLSTANNYLAZINE
3 1 2 3 4 TETRAHYDROPYRIDO1 2 APYRIMIDIN 6 ONE METHYL 97869 0% 100% 1 Search 1+2+3+4+TETRAHYDROPYRIDO1+2+APYRIMIDIN+6+ONE+METHYL Search 1+2+3+4+TETRAHYDROPYRIDO1+2+APYRIMIDIN+6+ONE+METHYL
4 1 2 3 4 TETRAHYDROPYRROLO1 2 APYRIMIDIN 7 YLIDENEACETATE 97869 0% 100% 1 Search 1+2+3+4+TETRAHYDROPYRROLO1+2+APYRIMIDIN+7+YLIDENEACETATE Search 1+2+3+4+TETRAHYDROPYRROLO1+2+APYRIMIDIN+7+YLIDENEACETATE
5 1 2 6 THIADIAZINES 97869 0% 100% 1 Search 1+2+6+THIADIAZINES Search 1+2+6+THIADIAZINES
6 1 4 DIHYDRO 1 2 4 TRIAZINE 97869 0% 100% 1 Search 1+4+DIHYDRO+1+2+4+TRIAZINE Search 1+4+DIHYDRO+1+2+4+TRIAZINE
7 1 4 DIHYDROTETRAZINE 3 6 DICARBOXYLATES 97869 0% 100% 1 Search 1+4+DIHYDROTETRAZINE+3+6+DICARBOXYLATES Search 1+4+DIHYDROTETRAZINE+3+6+DICARBOXYLATES
8 2 3 5 8 TETRAHYDRO1 2 4TRIAZOLO4 3 APYRIMIDINE 97869 0% 100% 1 Search 2+3+5+8+TETRAHYDRO1+2+4TRIAZOLO4+3+APYRIMIDINE Search 2+3+5+8+TETRAHYDRO1+2+4TRIAZOLO4+3+APYRIMIDINE
9 2 4 6 TRIIODOANILINE 97869 0% 100% 1 Search 2+4+6+TRIIODOANILINE Search 2+4+6+TRIIODOANILINE
10 2 4 DIIODOANILINE 97869 0% 100% 1 Search 2+4+DIIODOANILINE Search 2+4+DIIODOANILINE

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 CHO, H , (2013) DIHYDROPYRIMIDINE.HETEROCYCLES. VOL. 87. ISSUE 7. P. 1441 -+ 35 29% 6
2 UNDHEIM, K , BENNECHE, T , (1990) METALATION AND METAL-ASSISTED BOND FORMATION IN PI-ELECTRON DEFICIENT HETEROCYCLES.HETEROCYCLES. VOL. 30. ISSUE 2. P. 1155-1193 32 47% 20
3 NISHIMURA, Y , KUBO, T , OKAMOTO, Y , CHO, H , (2016) CONVERGENT SYNTHESIS OF 4,6-UNSUBSTITUTED 5-ACYL-2PHENYLDIHYDROPYRIMIDINES BY SUBSTITUTION REACTIONS OF WEINREB AMIDE GROUP OF TETRAHYDROPYRIMIDINES.TETRAHEDRON LETTERS. VOL. 57. ISSUE 40. P. 4492 -4495 13 50% 0
4 UNDHEIM, K , BENNECHE, T , (1993) METALATION AND METAL-ASSISTED BOND FORMATION IN PI-ELECTRON DEFICIENT HETEROCYCLES.ACTA CHEMICA SCANDINAVICA. VOL. 47. ISSUE 2. P. 102-121 30 41% 17
5 NISHIMURA, Y , YASUI, Y , KOBAYASHI, S , YAMAGUCHI, M , CHO, H , (2012) SYNTHESIS OF NOVEL 2-PHENYL-5-SUBSTITUTED DIHYDROPYRIMIDINES USING 2-PHENYL-1,3-DIAZA-1,3-BUTADIENES AND ELECTRON-DEFICIENT OLEFINS.TETRAHEDRON. VOL. 68. ISSUE 16. P. 3342 -3350 15 44% 6
6 BENNECHE, T , STRANDE, P , OFTEBRO, R , UNDHEIM, K , (1993) PYRIMIDINONES AS REVERSIBLE METAPHASE ARRESTING AGENTS.EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY. VOL. 28. ISSUE 6. P. 463-472 12 100% 4
7 CHO, H , KWON, E , YASUI, Y , KOBAYASHI, S , YOSHIDA, S , NISHIMURA, Y , YAMAGUCHI, M , (2011) RING CLEAVAGE OF DIHYDROPYRIMIDINE SKELETON.TETRAHEDRON LETTERS. VOL. 52. ISSUE 52. P. 7185 -7188 11 55% 2
8 NISHIMURA, Y , CHO, H , (2014) SYNTHESIS OF 4-UNSUBSTITUTED DIHYDROPYRIMIDINES HAVING ACYL AND ALKOXYCARBONYL GROUPS AT 5- AND 6-POSITIONS BY CYCLIZATION-ELIMINATION REACTIONS USING 1,3-DIAZA-1,3-BUTADIENES.TETRAHEDRON LETTERS. VOL. 55. ISSUE 2. P. 411 -414 12 41% 1
9 NISHIMURA, Y , CHO, H , (2015) SYNTHESIS OF 4,6-UNSUBSTITUTED 2-AMINODIHYDROPYRIMIDINE-5-CARBOXYLATES THROUGH SEQUENTIAL STAUDINGER/AZA-WITTIG/CYCLIZATION REACTIONS.SYNLETT. VOL. 26. ISSUE 2. P. 233 -237 11 41% 3
10 CHO, H , YASUI, Y , KOBAYASHI, S , KWON, E , ARISAWA, M , YAMAGUCHI, M , (2011) SYNTHESIS AND SUBSTITUTION REACTIONS OF 4(6)-CHLORODIHYDROPYRIMIDINES.HETEROCYCLES. VOL. 83. ISSUE 8. P. 1807 -1818 8 62% 2

Classes with closest relation at Level 1


Rank Class id link
1 36939 ARYLMERCURIALS//ARYLMERCURIC CHLORIDES//ARYLMERCURIC HALIDES
2 22870 REISSERT COMPOUNDS//ALPHA CYANATION//PYRAZINE N OXIDES
3 24670 1 2 3 4 TETRAHYDROPYRIMIDIN 2 ONES//UREIDOALKYLATION//2 3 4 5 TETRAHYDRO 1H 1 3 DIAZEPIN 2 ONES
4 4975 BIGINELLI REACTION//DIHYDROPYRIMIDINONES//3 4 DIHYDROPYRIMIDIN 21H ONES
5 23983 MALCOLM H FILSON S//SITE SELECTIVITY//WATERBORNE CONDITIONS
6 29931 DIPHENYLBORON CHELATES//BENZOYLCYANAMIDE//DIFLUOROBORON CHELATES
7 32172 HERMIDIN//SPERANSKIA TUBERCULATA//MERCURIALIS ACID
8 37038 1 4 BIBENZOTHIAZEPINES//1 4 THIAZEPINONES//4 4 DIMERCAPTOBIPHENYL
9 26067 TARUMI KU//ALLIED MED SCI SUMA KU//MED FUKUSHIMA KU
10 25184 ANNELATED QUINAZOLINE DERIVATIVES//OXETATHIONES//THIOTANONES

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