Class information for:
Level 1: CHIRAL PHOSPHORIC ACID//CHIRAL BRONSTED ACID//BRONSTED ACID

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
7845 1321 58.4 85%


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
1 3       CHEMISTRY, ORGANIC//TETRAHEDRON LETTERS//JOURNAL OF ORGANIC CHEMISTRY 237069
402 2             ORGANOCATALYSIS//ASYMMETRIC CATALYSIS//MICHAEL ADDITION 16725
7845 1                   CHIRAL PHOSPHORIC ACID//CHIRAL BRONSTED ACID//BRONSTED ACID 1321

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 CHIRAL PHOSPHORIC ACID authKW 538296 3% 61% 38
2 CHIRAL BRONSTED ACID authKW 504806 2% 70% 31
3 BRONSTED ACID authKW 477836 8% 19% 108
4 ORGANOCATALYSIS authKW 459286 20% 7% 266
5 FRIEDEL CRAFTS REACTION authKW 271148 6% 14% 81
6 PHOSPHORIC ACIDS authKW 249509 2% 47% 23
7 BINOL PHOSPHATE authKW 210123 1% 91% 10
8 ASYMMETRIC CATALYSIS authKW 193906 16% 4% 217
9 HANTZSCH ESTER authKW 188080 2% 35% 23
10 N TRIFLYL PHOSPHORAMIDE authKW 161796 1% 100% 7

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 20774 56% 0% 741
2 Chemistry, Multidisciplinary 4970 40% 0% 531
3 Chemistry, Applied 321 5% 0% 71
4 Chemistry, Inorganic & Nuclear 59 3% 0% 46
5 Chemistry, Physical 5 5% 0% 65
6 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 0 0% 0% 3
7 Chemistry, Medicinal 0 1% 0% 12
8 Crystallography -3 0% 0% 4
9 Engineering, General -6 0% 0% 1
10 Biochemical Research Methods -12 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 ASYMMETR SYNTH CHIRALTECHNOL SICHUAN PR 105656 1% 57% 8
2 COOPERAT EDUC PROGRAM IMS 46227 0% 100% 2
3 JIANGSU GREEN SYNTHET CHEM FUNCT MAT 42787 2% 7% 28
4 M RU BOLOGNA 34668 0% 50% 3
5 ANALYT GIANT MOL 28391 1% 8% 15
6 ALMA MATER STUDORIORUM 23114 0% 100% 1
7 C AMER VESPUCIO 23114 0% 100% 1
8 CATALYSI 23114 0% 100% 1
9 CHEM METHODOL LIB DEV BOSTON UNIV 23114 0% 100% 1
10 CHEM SCIINAGA KU 23114 0% 100% 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 ADVANCED SYNTHESIS & CATALYSIS 21247 5% 1% 70
2 ORGANIC LETTERS 19356 11% 1% 146
3 ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 13350 11% 0% 150
4 SYNLETT 7730 5% 0% 69
5 ORGANIC & BIOMOLECULAR CHEMISTRY 6589 4% 1% 58
6 CHEMISTRY-A EUROPEAN JOURNAL 5053 5% 0% 72
7 ASIAN JOURNAL OF ORGANIC CHEMISTRY 4631 1% 2% 12
8 EUROPEAN JOURNAL OF ORGANIC CHEMISTRY 4431 4% 0% 49
9 CHEMISTRY-AN ASIAN JOURNAL 2740 2% 1% 20
10 JOURNAL OF ORGANIC CHEMISTRY 2722 6% 0% 79

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 CHIRAL PHOSPHORIC ACID 538296 3% 61% 38 Search CHIRAL+PHOSPHORIC+ACID Search CHIRAL+PHOSPHORIC+ACID
2 CHIRAL BRONSTED ACID 504806 2% 70% 31 Search CHIRAL+BRONSTED+ACID Search CHIRAL+BRONSTED+ACID
3 BRONSTED ACID 477836 8% 19% 108 Search BRONSTED+ACID Search BRONSTED+ACID
4 ORGANOCATALYSIS 459286 20% 7% 266 Search ORGANOCATALYSIS Search ORGANOCATALYSIS
5 FRIEDEL CRAFTS REACTION 271148 6% 14% 81 Search FRIEDEL+CRAFTS+REACTION Search FRIEDEL+CRAFTS+REACTION
6 PHOSPHORIC ACIDS 249509 2% 47% 23 Search PHOSPHORIC+ACIDS Search PHOSPHORIC+ACIDS
7 BINOL PHOSPHATE 210123 1% 91% 10 Search BINOL+PHOSPHATE Search BINOL+PHOSPHATE
8 ASYMMETRIC CATALYSIS 193906 16% 4% 217 Search ASYMMETRIC+CATALYSIS Search ASYMMETRIC+CATALYSIS
9 HANTZSCH ESTER 188080 2% 35% 23 Search HANTZSCH+ESTER Search HANTZSCH+ESTER
10 N TRIFLYL PHOSPHORAMIDE 161796 1% 100% 7 Search N+TRIFLYL+PHOSPHORAMIDE Search N+TRIFLYL+PHOSPHORAMIDE

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 PARMAR, D , SUGIONO, E , RAJA, S , RUEPING, M , (2014) COMPLETE FIELD GUIDE TO ASYMMETRIC BINOL-PHOSPHATE DERIVED BRONSTED ACID AND METAL CATALYSIS: HISTORY AND CLASSIFICATION BY MODE OF ACTIVATION; BRONSTED ACIDITY, HYDROGEN BONDING, ION PAIRING, AND METAL PHOSPHATES.CHEMICAL REVIEWS. VOL. 114. ISSUE 18. P. 9047 -9153 352 50% 301
2 TERADA, M , (2010) CHIRAL PHOSPHORIC ACIDS AS VERSATILE CATALYSTS FOR ENANTIOSELECTIVE TRANSFORMATIONS.SYNTHESIS-STUTTGART. VOL. . ISSUE 12. P. 1929 -1982 154 39% 438
3 WU, H , HE, YP , SHI, F , (2015) RECENT ADVANCES IN CHIRAL PHOSPHORIC ACID CATALYZED ASYMMETRIC REACTIONS FOR THE SYNTHESIS OF ENANTIOPURE INDOLE DERIVATIVES.SYNTHESIS-STUTTGART. VOL. 47. ISSUE 14. P. 1990 -2016 97 67% 16
4 HERRERA, RP , (2016) ORGANOCATALYTIC TRANSFER HYDROGENATION AND HYDROSILYLATION REACTIONS.TOPICS IN CURRENT CHEMISTRY. VOL. 374. ISSUE 3. P. - 119 57% 1
5 DALPOZZO, R , (2015) STRATEGIES FOR THE ASYMMETRIC FUNCTIONALIZATION OF INDOLES: AN UPDATE.CHEMICAL SOCIETY REVIEWS. VOL. 44. ISSUE 3. P. 742 -778 70 56% 61
6 ZENG, M , YOU, SL , (2010) ASYMMETRIC FRIEDEL-CRAFTS ALKYLATION OF INDOLES: THE CONTROL OF ENANTIO-AND REGIOSELECTIVITY.SYNLETT. VOL. . ISSUE 9. P. 1289 -1301 87 58% 156
7 ZENG, M , ZHANG, W , YOU, SL , (2012) ONE-POT SYNTHESIS OF PYRROLO[1,2-A]INDOLES BY CHIRAL N-TRIFLYL PHOSPHORAMIDE CATALYZED FRIEDEL-CRAFTS ALKYLATION OF 4,7-DIHYDROINDOLE WITH BETA,GAMMA-UNSATURATED ALPHA-KETO ESTERS.CHINESE JOURNAL OF CHEMISTRY. VOL. 30. ISSUE 11. P. 2615 -2623 76 80% 14
8 RUEPING, M , RAJA, S , NUNEZ, A , (2011) ASYMMETRIC BRONSTED ACID-CATALYZED FRIEDEL-CRAFTS REACTIONS OF INDOLES WITH CYCLIC IMINES - EFFICIENT GENERATION OF NITROGEN-SUBSTITUTED QUATERNARY CARBON CENTERS.ADVANCED SYNTHESIS & CATALYSIS. VOL. 353. ISSUE 4. P. 563 -568 64 88% 46
9 POULSEN, TB , JORGENSEN, KA , (2008) CATALYTIC ASYMMETRIC FRIEDEL-CRAFTS ALKYLATION REACTIONS-COPPER SHOWED THE WAY.CHEMICAL REVIEWS. VOL. 108. ISSUE 8. P. 2903-2915 59 67% 418
10 REID, JP , SIMON, L , GOODMAN, JM , (2016) A PRACTICAL GUIDE FOR PREDICTING THE STEREOCHEMISTRY OF BIFUNCTIONAL PHOSPHORIC ACID CATALYZED REACTIONS OF IMINES.ACCOUNTS OF CHEMICAL RESEARCH. VOL. 49. ISSUE 5. P. 1029 -1041 46 78% 9

Classes with closest relation at Level 1


Rank Class id link
1 743 ORGANOCATALYSIS//MICHAEL ADDITION//ASYMMETRIC CATALYSIS
2 11452 BISINDOLYLMETHANES//BISINDOLYL METHANES//INDOLE
3 12203 MANNICH REACTION//BETA AMINO KETONES//BETA AMINO CARBONYL COMPOUNDS
4 10807 OXINDOLE//SPIROOXINDOLE//ENGN CHIRAL DRUGS
5 21650 ALPHA AMINONITRILES//STRECKER REACTION//TRIMETHYLSILYL CYANIDE
6 25642 NMR ENANTIODIFFERENTIATION//HEXACOORDINATED PHOSPHORUS//ORGANOMETALLOLIGAND
7 11220 IMINO DIELS ALDER REACTION//TETRAHYDROQUINOLINE//POVAROV REACTION
8 15588 DOMINO KNOEVENAGEL HETERO DIELS ALDER REACTION//HETERO DIELS ALDER REACTION//1 OXA 1 3 BUTADIENES
9 15874 KINETIC RESOLUTION//ASYMMETRIC ESTERIFICATION//CHIRAL COPPER COMPLEX
10 25765 TRIARYLMETHANE//BAEYER CONDENSATION//BISARYLATION

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