Class information for:
Level 1: BETA LACTAMS//2 AZETIDINONE//STAUDINGER REACTION

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
4751 1733 34.7 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
682 3       BETA LACTAMS//BETA LACTAMASE//INGN PROT 8575
1556 2             BETA LACTAMS//BETA LACTAMASE//INGN PROT 7389
4751 1                   BETA LACTAMS//2 AZETIDINONE//STAUDINGER REACTION 1733

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 BETA LACTAMS authKW 809948 15% 18% 261
2 2 AZETIDINONE authKW 619671 3% 64% 55
3 STAUDINGER REACTION authKW 549090 5% 38% 83
4 AZETIDIN 2 ONES authKW 269236 2% 48% 32
5 KINUGASA REACTION authKW 247754 1% 94% 15
6 AZETIDINONES authKW 221060 3% 27% 47
7 N THIOLATED BETA LACTAMS authKW 158564 1% 100% 9
8 LACTAMS authKW 95806 4% 9% 63
9 QUIM ORGAN 1 address 94226 4% 8% 69
10 KETENES authKW 89919 3% 12% 44

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 37862 66% 0% 1140
2 Chemistry, Medicinal 1954 11% 0% 183
3 Chemistry, Multidisciplinary 1753 23% 0% 391
4 Crystallography 137 3% 0% 53
5 Chemistry, Inorganic & Nuclear 55 3% 0% 54
6 Chemistry, Applied 6 1% 0% 24
7 Pharmacology & Pharmacy 0 3% 0% 56
8 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY -1 0% 0% 1
9 Allergy -2 0% 0% 1
10 Tropical Medicine -2 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 QUIM ORGAN 1 94226 4% 8% 69
2 MOL ERS DRUG DESIGN DISCOVERY DELIVERY 65240 1% 37% 10
3 UMR RELAT HOTE PARASITES PHYSIOPATHOL PHARMACOL 56377 0% 80% 4
4 QUIM ORGAN SINTESISUNR 52855 0% 100% 3
5 CARDIOVASC CNS MED CHEM 35236 0% 100% 2
6 CIENCIAS QUIM QUIM ORGAN 1072 35236 0% 100% 2
7 CIENCIAS QUIMUNIDAD QUIM ORGAN 35236 0% 100% 2
8 ORGAN CHEM SYNTH 25860 1% 7% 21
9 CONICETUNR 23490 0% 67% 2
10 ADV STUDIES CHEM 22856 1% 6% 23

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 TETRAHEDRON LETTERS 13071 14% 0% 234
2 TETRAHEDRON 9348 8% 0% 141
3 JOURNAL OF ORGANIC CHEMISTRY 8792 9% 0% 161
4 SYNLETT 4416 3% 0% 60
5 HETEROCYCLES 3968 3% 0% 55
6 INDIAN JOURNAL OF CHEMISTRY SECTION B-ORGANIC CHEMISTRY INCLUDING MEDICINAL CHEMISTRY 3241 2% 0% 43
7 EUROPEAN JOURNAL OF ORGANIC CHEMISTRY 2453 2% 0% 42
8 BIOORGANIC & MEDICINAL CHEMISTRY LETTERS 2033 3% 0% 55
9 ARKIVOC 1715 1% 1% 19
10 SYNTHESIS-STUTTGART 1569 2% 0% 37

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 BETA LACTAMS 809948 15% 18% 261 Search BETA+LACTAMS Search BETA+LACTAMS
2 2 AZETIDINONE 619671 3% 64% 55 Search 2+AZETIDINONE Search 2+AZETIDINONE
3 STAUDINGER REACTION 549090 5% 38% 83 Search STAUDINGER+REACTION Search STAUDINGER+REACTION
4 AZETIDIN 2 ONES 269236 2% 48% 32 Search AZETIDIN+2+ONES Search AZETIDIN+2+ONES
5 KINUGASA REACTION 247754 1% 94% 15 Search KINUGASA+REACTION Search KINUGASA+REACTION
6 AZETIDINONES 221060 3% 27% 47 Search AZETIDINONES Search AZETIDINONES
7 N THIOLATED BETA LACTAMS 158564 1% 100% 9 Search N+THIOLATED+BETA+LACTAMS Search N+THIOLATED+BETA+LACTAMS
8 LACTAMS 95806 4% 9% 63 Search LACTAMS Search LACTAMS
9 KETENES 89919 3% 12% 44 Search KETENES Search KETENES
10 SPIRO BETA LACTAM 78476 0% 64% 7 Search SPIRO+BETA+LACTAM Search SPIRO+BETA+LACTAM

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 ARANDA, MT , PEREZ-FAGINAS, P , GONZALEZ-MUNIZ, R , (2009) AN UPDATE ON THE SYNTHESIS OF BETA-LACTAMS.CURRENT ORGANIC SYNTHESIS. VOL. 6. ISSUE 3. P. 325-341 142 65% 42
2 PALOMO, C , AIZPURUA, JM , GANBOA, I , OIARBIDE, M , (2004) ASYMMETRIC SYNTHESIS OF BETA-LACTAMS THROUGH THE STAUDINGER REACTION AND THEIR USE AS BUILDING BLOCKS OF NATURAL AND NONNATURAL PRODUCTS.CURRENT MEDICINAL CHEMISTRY. VOL. 11. ISSUE 14. P. 1837 -1872 124 66% 156
3 FU, N , TIDWELL, TT , (2008) PREPARATION OF BETA-LACTAMS BY [2+2] CYCLOADDITION OF KETENES AND IMINES.TETRAHEDRON. VOL. 64. ISSUE 46. P. 10465 -10496 91 65% 103
4 XU, JX , (2012) SYNTHESIS OF BETA-LACTAMS WITH PI ELECTRON-WITHDRAWING SUBSTITUENTS.TETRAHEDRON. VOL. 68. ISSUE 52. P. 10696-10747 129 46% 19
5 PALOMO, C , AIZPURUA, JM , GANBOA, I , OIARBIDE, M , (1999) ASYMMETRIC SYNTHESIS OF BETA-LACTAMS BY STAUDINGER KETENE-IMINE CYCLOADDITION REACTION.EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. VOL. . ISSUE 12. P. 3223 -3235 90 74% 248
6 SINGH, GS , SUDHEESH, S , (2014) ADVANCES IN SYNTHESIS OF MONOCYCLIC BETA-LACTAMS.ARKIVOC. VOL. . ISSUE . P. 337 -385 69 68% 5
7 ZAREI, M , (2012) UTILIZATION OF DMF-PHCOCL ADDUCT AS AN ACID ACTIVATOR IN A NEW AND CONVENIENT METHOD FOR PREPARATION OF BETA-LACTAMS.BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN. VOL. 85. ISSUE 3. P. 360 -368 64 73% 4
8 PITTS, CR , LECTKA, T , (2014) CHEMICAL SYNTHESIS OF BETA-LACTAMS: ASYMMETRIC CATALYSIS AND OTHER RECENT ADVANCES.CHEMICAL REVIEWS. VOL. 114. ISSUE 16. P. 7930 -7953 68 45% 45
9 HERAVI, MM , TALAEI, B , (2014) KETENES AS PRIVILEGED SYNTHONS IN THE SYNTHESES OF HETEROCYCLIC COMPOUNDS. PART 1: THREE-AND FOUR-MEMBERED HETEROCYCLES.ADVANCES IN HETEROCYCLIC CHEMISTRY, VOL 113. VOL. 113. ISSUE . P. 143 -244 103 39% 2
10 CREMONESI, G , DALLA CROCE, P , FORNI, A , LA ROSA, C , (2013) STEREOSELECTIVE SYNTHESIS OF CONSTRAINED NORBORNANE-DERIVED SPIRO-BETA-LACTAMS.TETRAHEDRON. VOL. 69. ISSUE 3. P. 1175 -1182 51 77% 7

Classes with closest relation at Level 1


Rank Class id link
1 6555 1 BETA METHYLCARBAPENEM//5 OXACEPHAMS//TRINEMS
2 17371 SPIRO THIAZOLIDINONE//AZTREONAM DETERMINATION//AZTREONAM
3 16499 AZETIDINES//1 AZABICYCLO110BUTANE//AZETIDIN 3 ONES
4 22062 3S 5R 6R 6 ACETYLAMIDOPENICILLANIC ACID//BETA LACTAM COMPOUNDS//BIOL VET BIOQUIM BIOL MOLEC
5 13510 ELASTASE INHIBITOR//PROTEINASE K INHIBITOR//HUMAN LEUKOCYTE ELASTASE
6 25769 REFORMATSKY REACTION//ASYMMETRIC REFORMATSKY REACTION//GRAPHITE POWDER CATHODE
7 19799 BETA LACTONES//TETRAHYDROLIPSTATIN//LIPSTATIN
8 15770 AZADIENES//1 3 DIAZABUTA 1 3 DIENES//1 AZADIENES
9 24642 2 OXAZOLONE//2 THIAZOLONE//1 3 DIHYDRO 2 IMIDAZOLONE
10 12203 MANNICH REACTION//BETA AMINO KETONES//BETA AMINO CARBONYL COMPOUNDS

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