Class information for:
Level 1: 2 PYRONES//NSF ENGN BIORENEWABLE CHEM//2 PYRONE

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
16677 576 29.5 53%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
2331 4012 VICARIOUS NUCLEOPHILIC SUBSTITUTION//NUCLEOPHILIC SUBSTITUTION OF HYDROGEN//SIGMAH ADDUCTS

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 2 PYRONES Author keyword 5 41% 2% 9
2 NSF ENGN BIORENEWABLE CHEM Address 4 67% 1% 4
3 2 PYRONE Author keyword 4 30% 2% 10
4 BASE CATALYZED DIELS ALDER REACTION Author keyword 3 100% 1% 3
5 3 HYDROXY 2 PYRONE Author keyword 2 44% 1% 4
6 21H PYRIDONE Author keyword 2 67% 0% 2
7 2 PYRONE DERIVATIVES Author keyword 2 50% 1% 3
8 METHYL COUMALATE Author keyword 1 100% 0% 2
9 CHLOROCARBONYLPHENYL KETENE Author keyword 1 40% 0% 2
10 UNITE RECH SYNTH ANAL MAT Address 1 40% 0% 2

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 2 PYRONES 5 41% 2% 9 Search 2+PYRONES Search 2+PYRONES
2 2 PYRONE 4 30% 2% 10 Search 2+PYRONE Search 2+PYRONE
3 BASE CATALYZED DIELS ALDER REACTION 3 100% 1% 3 Search BASE+CATALYZED+DIELS+ALDER+REACTION Search BASE+CATALYZED+DIELS+ALDER+REACTION
4 3 HYDROXY 2 PYRONE 2 44% 1% 4 Search 3+HYDROXY+2+PYRONE Search 3+HYDROXY+2+PYRONE
5 21H PYRIDONE 2 67% 0% 2 Search 21H+PYRIDONE Search 21H+PYRIDONE
6 2 PYRONE DERIVATIVES 2 50% 1% 3 Search 2+PYRONE+DERIVATIVES Search 2+PYRONE+DERIVATIVES
7 METHYL COUMALATE 1 100% 0% 2 Search METHYL+COUMALATE Search METHYL+COUMALATE
8 CHLOROCARBONYLPHENYL KETENE 1 40% 0% 2 Search CHLOROCARBONYLPHENYL+KETENE Search CHLOROCARBONYLPHENYL+KETENE
9 PYRONES 1 11% 1% 7 Search PYRONES Search PYRONES
10 1 UNSUBSTITUTED 21H PYRIDONE 1 50% 0% 1 Search 1+UNSUBSTITUTED+21H+PYRIDONE Search 1+UNSUBSTITUTED+21H+PYRIDONE

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 FUSED PYRAN 2 ONES 44 85% 4% 23
2 2H PYRAN 2 ONES 36 53% 8% 48
3 TANDEM PERICYCLIC REACTIONS 27 92% 2% 11
4 2 PYRONES 13 36% 5% 30
5 3 HYDROXY 2 PYRONE 11 60% 2% 12
6 3 5 DIBROMO 2 PYRONE 9 48% 2% 14
7 HETEROCYCLIC HYDRAZONES 9 59% 2% 10
8 ELECTRONICALLY MATCHED 2 PYRONES 8 75% 1% 6
9 5 HYDRAZONO 5 6 7 8 TETRAHYDRO 2H 1 BENZOPYRAN 2 ONES 8 100% 1% 5
10 ALPHA PYRONES 7 19% 6% 35

Journals

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
DIELS-ALDER CYCLOADDITIONS OF 2-PYRONES AND 2-PYRIDONES 1992 202 114 36%
RING TRANSFORMATIONS OF 2H-PYRAN-2-ONES AND FUSED PYRAN-2-ONES WITH NUCLEOPHILIC REAGENTS 2009 7 66 64%
6-UNSUBSTITUTED 2H-PYRAN-2-ONES - SYNTHESIS AND REACTIVITY 1993 36 47 38%
An improved preparation of 3-bromo-2(H)-pyran-2-one: An ambiphilic diene for Diels-Alder cycloadditions - (2H-pyran-2-one, 3-bromo-) 1996 5 6 83%
Recent advances in organic synthesis under high pressure 1997 44 73 14%
The synthesis and reactions of heterocycles under high pressures: Part II 1998 21 77 29%
Recent Advances in the Synthesis of 2-Pyrones 2015 0 91 37%
2-Pyrone natural products and mimetics: isolation, characterisation and biological activity 2005 95 170 8%
Development of Catalytic Diels-Alder Reactions Based on Diene Activation Methodology, and Their Synthetic Applications for Biologically Active Cyclohexeneoxides and Carbasugars 2012 0 58 33%
Compendium of cycloaddition reactions under high pressure 2005 33 340 12%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ.
in class
1 NSF ENGN BIORENEWABLE CHEM 4 67% 0.7% 4
2 UNITE RECH SYNTH ANAL MAT 1 40% 0.3% 2
3 SYNTH ANAL MAT 1 50% 0.2% 1
4 UNITE RECH SYNTHESE ANAL MAT 1 50% 0.2% 1
5 CNR SOSTANZE ORGAN NAT 0 33% 0.2% 1
6 LRCMO2 0 33% 0.2% 1
7 CHIM ORGAN IND 0 14% 0.2% 1
8 441 KOMATSUSHIMA AOBA KU 0 13% 0.2% 1
9 CHIM ORGAN STRUCT SYNTH ETUD PHYSICOCHIM 0 11% 0.2% 1
10 CHEM BIO BIOTECHNOLSHENZHEN 0 100% 0.2% 1

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000268424 RING TRANSFORMATION REACTION//2H PYRAN 2 ONE//2H PYRAN 2 ONES
2 0.0000137440 21H PYRAZINONES//SIMULTANEOUS COOLING//PYRAZINONE
3 0.0000103064 CITREOVIRIDIN//BIOLOGICAL DIELS ALDER REACTION//MACROPHOMATE SYNTHASE
4 0.0000100459 BUTLEROV CHEM//PIEZOCHIM ORGAN//1 1 DICYANO 2 2 BISTRIFLUOROMETHYLETHYLENE
5 0.0000096036 GRP HETEROCYCLES//COMPOSES ORGAN HETEROCYCL//FUROCOUMARINONES
6 0.0000094397 DOMINO KNOEVENAGEL HETERO DIELS ALDER REACTION//KNOEVENAGEL HETERO DIELS ALDER//UNACTIVATED ALKYNES
7 0.0000093990 NMR MOL MODELING//HISTAMINE ANALOGUES//NMR MOL MODELLING
8 0.0000091301 DIAZENES//DIAZENECARBOXAMIDES//BIOINORGAN CHEM S
9 0.0000083512 TRICYCLIC PYRONES//TERRITREM B//TERRITREM B ANALOGUES
10 0.0000074166 BENZOCCINNOLINES//NICHOLSON//POLYCYLIC COMPOUNDS