Class information for:
Level 1: 1 4 DIHYDROPYRIDINES//POLYHYDROQUINOLINE//HANTZSCH REACTION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
3614 1945 29.6 64%


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
880 2             BIGINELLI REACTION//MULTICOMPONENT REACTIONS//1 4 DIHYDROPYRIDINES 11451
3614 1                   1 4 DIHYDROPYRIDINES//POLYHYDROQUINOLINE//HANTZSCH REACTION 1945

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 4 DIHYDROPYRIDINES authKW 3458291 18% 62% 355
2 POLYHYDROQUINOLINE authKW 998929 4% 91% 70
3 HANTZSCH REACTION authKW 675577 4% 54% 79
4 HANTZSCH 1 4 DIHYDROPYRIDINES authKW 523242 2% 83% 40
5 HANTZSCH CONDENSATION authKW 350389 1% 89% 25
6 HANTZSCH authKW 265923 1% 71% 24
7 HEXAHYDROQUINOLINE authKW 223298 1% 68% 21
8 4 DIHYDROPYRIDINES authKW 207582 1% 58% 23
9 POLYHYDROQUINOLINE DERIVATIVES authKW 204069 1% 100% 13
10 DIHYDROPYRIDINE authKW 171339 5% 11% 98

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 13692 38% 0% 742
2 Chemistry, Medicinal 8248 20% 0% 383
3 Chemistry, Multidisciplinary 4743 33% 0% 643
4 Crystallography 1323 8% 0% 148
5 Pharmacology & Pharmacy 902 15% 0% 288
6 Chemistry, Inorganic & Nuclear 69 3% 0% 63
7 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 48 1% 0% 16
8 Spectroscopy 18 2% 0% 30
9 Chemistry, Physical 17 6% 0% 108
10 Electrochemistry 16 1% 0% 28

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 SYNTH MOL MODELING 80729 0% 86% 6
2 BIOLE OCHEM 62791 0% 100% 4
3 SINTESIS ORGAN 52777 2% 9% 36
4 MEMBRANE ACT CPDS BETA DIKETONES 50231 0% 80% 4
5 ANTIRETROVIRAL THER Y 41858 0% 67% 4
6 ANALYT CHEM MED FYSICOCHEM 34885 1% 17% 13
7 11801 SHODAIOTANI 2 CHOME 31395 0% 100% 2
8 DIFFRACT 31395 0% 100% 2
9 BIOELE OCHEM 22614 1% 10% 15
10 MED NAT PROD CHEM 21825 2% 4% 33

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 KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII 14242 4% 1% 76
2 ARCHIV DER PHARMAZIE 5777 2% 1% 40
3 SYNTHETIC COMMUNICATIONS 4459 3% 0% 64
4 JOURNAL OF HETEROCYCLIC CHEMISTRY 4450 3% 1% 56
5 HETEROCYCLIC COMMUNICATIONS 3935 1% 1% 20
6 PHARMAZIE 2903 2% 0% 41
7 RESEARCH ON CHEMICAL INTERMEDIATES 2503 1% 1% 25
8 CHINESE JOURNAL OF ORGANIC CHEMISTRY 2299 1% 1% 27
9 CHEMISTRY OF HETEROCYCLIC COMPOUNDS 2179 1% 1% 15
10 CHEMICAL & PHARMACEUTICAL BULLETIN 2110 3% 0% 49

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 4 DIHYDROPYRIDINES 3458291 18% 62% 355 Search 1+4+DIHYDROPYRIDINES Search 1+4+DIHYDROPYRIDINES
2 POLYHYDROQUINOLINE 998929 4% 91% 70 Search POLYHYDROQUINOLINE Search POLYHYDROQUINOLINE
3 HANTZSCH REACTION 675577 4% 54% 79 Search HANTZSCH+REACTION Search HANTZSCH+REACTION
4 HANTZSCH 1 4 DIHYDROPYRIDINES 523242 2% 83% 40 Search HANTZSCH+1+4+DIHYDROPYRIDINES Search HANTZSCH+1+4+DIHYDROPYRIDINES
5 HANTZSCH CONDENSATION 350389 1% 89% 25 Search HANTZSCH+CONDENSATION Search HANTZSCH+CONDENSATION
6 HANTZSCH 265923 1% 71% 24 Search HANTZSCH Search HANTZSCH
7 HEXAHYDROQUINOLINE 223298 1% 68% 21 Search HEXAHYDROQUINOLINE Search HEXAHYDROQUINOLINE
8 4 DIHYDROPYRIDINES 207582 1% 58% 23 Search 4+DIHYDROPYRIDINES Search 4+DIHYDROPYRIDINES
9 POLYHYDROQUINOLINE DERIVATIVES 204069 1% 100% 13 Search POLYHYDROQUINOLINE+DERIVATIVES Search POLYHYDROQUINOLINE+DERIVATIVES
10 DIHYDROPYRIDINE 171339 5% 11% 98 Search DIHYDROPYRIDINE Search DIHYDROPYRIDINE

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 FILIPAN-LITVIC, M , LITVIC, M , VINKOVIC, V , (2008) A HIGHLY EFFICIENT BIOMIMETIC AROMATIZATION OF HANTZSCH-1,4-DIHYDROPYRIDINES WITH T-BUTYLHYDROPEROXIDE, CATALYSED BY IRON(III) PHTHALOCYANINE CHLORIDE.BIOORGANIC & MEDICINAL CHEMISTRY. VOL. 16. ISSUE 20. P. 9276-9282 72 82% 19
2 FILIPAN-LITVIC, M , LITVIC, M , VINKOVIC, V , (2008) AN EFFICIENT, METAL-FREE, ROOM TEMPERATURE AROMATIZATION OF HANTZSCH-1,4-DIHYDROPYRIDINES WITH UREA-HYDROGEN PEROXIDE ADDUCT, CATALYZED BY MOLECULAR IODINE.TETRAHEDRON. VOL. 64. ISSUE 24. P. 5649 -5656 67 84% 39
3 COMINS, DL , HIGUCHI, K , YOUNG, DW , (2013) DIHYDROPYRIDINE PREPARATION AND APPLICATION IN THE SYNTHESIS OF PYRIDINE DERIVATIVES.ADVANCES IN HETEROCYCLIC CHEMISTRY, VOL 110. VOL. 110. ISSUE . P. 175-235 100 47% 13
4 LU, LL , XU, H , ZHOU, P , YU, FC , (2016) PROGRESS IN SYNTHESIS OF 1,4-DIHYDROPYRIDINES.CHINESE JOURNAL OF ORGANIC CHEMISTRY. VOL. 36. ISSUE 12. P. 2858 -2879 87 54% 0
5 FILIPAN-LITVIC, M , LITVIC, M , VINKOVIC, V , (2008) RAPID, EFFICIENT, ROOM TEMPERATURE AROMATIZATION OF HANTZSCH-1,4-DIHYDROPYRIDINES WITH VANADIUM(V) SALTS: SUPERIORITY OF CLASSICAL TECHNIQUE VERSUS MICROWAVE PROMOTED REACTION.TETRAHEDRON. VOL. 64. ISSUE 48. P. 10912-10918 60 82% 14
6 SINGH, SK , SHARMA, VK , (2014) REACTIONS OF 1,2-& 1,4-DIHYDROPYRIDINES.CURRENT ORGANIC CHEMISTRY. VOL. 18. ISSUE 9. P. 1159 -1207 75 53% 6
7 SAINI, A , KUMAR, S , SANDHU, JS , (2008) HANTZSCH REACTION: RECENT ADVANCES IN HANTZSCH 1,4-DIHYDROPYRIDINES.JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH. VOL. 67. ISSUE 2. P. 95-111 68 62% 47
8 SHAIKH, AC , CHEN, CPA , (2010) FACILE AND EFFICIENT AROMATIZATION OF 1,4-DIHYDROPYRIDINES WITH M(NO3)(2)CENTER DOT XH2O, TNCB, TBAP AND HMTAI AND PREPARATION OF DEUTERIUM LABELED DEHYDRONIFEDIPINE FROM NIFEDIPINE-D(3).BIOORGANIC & MEDICINAL CHEMISTRY LETTERS. VOL. 20. ISSUE 12. P. 3664 -3668 65 64% 13
9 DEBACHE, A , GHALEM, W , BOULCINA, R , BELFAITAH, A , RHOUATI, S , CARBONI, B , (2009) AN EFFICIENT ONE-STEP SYNTHESIS OF 1,4-DIHYDROPYRIDINES VIA A TRIPHENYLPHOSPHINE-CATALYZED THREE-COMPONENT HANTZSCH REACTION UNDER MILD CONDITIONS.TETRAHEDRON LETTERS. VOL. 50. ISSUE 37. P. 5248 -5250 39 89% 90
10 MAJUMDAR, P , PATI, A , BEHERA, RK , BEHERA, AK , (2013) PARA SUBSTITUTED BENZALDEHYDES AS EXPEDIENT REAGENTS FOR THE OXIDATIVE AROMATIZATION OF HYDROQUINOLINE.JOURNAL OF HETEROCYCLIC CHEMISTRY. VOL. 50. ISSUE 3. P. 703 -712 49 75% 0

Classes with closest relation at Level 1


Rank Class id link
1 32838 1 2 CARBONYL ADDITION//2 BROMO 1 PHENYLETHANOL//2 MONO AND 2 6 DISUBSTITUTED 1 4 DIHYDROPYRIDINES
2 10759 LACIDIPINE//MEBUDIPINE//NIFEDIPINE
3 4975 BIGINELLI REACTION//DIHYDROPYRIMIDINONES//3 4 DIHYDROPYRIMIDIN 21H ONES
4 11258 XANTHENE//1 8 DIOXO OCTAHYDROXANTHENES//1 8 DIOXO DECAHYDROACRIDINES
5 35207 1 3 AECTONEDICARBOXYLATE//2 4 DIACETYL 3 4 FLUOROPHENYL 5 HYDROXY 5 METHYLCYCLOHEXANONE//2 4 DIACETYL 5 HYDROXY 5 METHYL 3 4 NITROPHENYL CYCLOHEXANONE
6 4492 DIHYDROPYRIDINE//SR 33557//BAY K 8644
7 9752 NADH MODEL//NADPH MODEL//1 BENZYL 1 4 DIHYDRONICOTINAMIDE
8 16574 BISTRIMETHYLSILYLKETENE ACETALS//N ACTIVATION//GAMMA AND DELTA LACTONES
9 32353 FOSTEDIL//BENZOB PYRAN DERIVATIVES//CAS 132031 81 3
10 35384 CD 832//PRANIDIPINE//KT 362

Go to start page