Class information for:
Level 1: PHASE TRANSFER CATALYSIS//SPECIAL ORGANOCATALYT CHEM//CHIRAL PHASE TRANSFER CATALYST

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
16393 656 41.0 76%


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
2075 2             CHEMISTRY, ORGANIC//ACROMELIC ACID//PHASE TRANSFER CATALYSIS 5254
16393 1                   PHASE TRANSFER CATALYSIS//SPECIAL ORGANOCATALYT CHEM//CHIRAL PHASE TRANSFER CATALYST 656

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 PHASE TRANSFER CATALYSIS authKW 461752 16% 10% 103
2 SPECIAL ORGANOCATALYT CHEM address 296419 2% 58% 11
3 CHIRAL PHASE TRANSFER CATALYST authKW 281597 2% 55% 11
4 SPECIAL ORGANOCATALYT CHEMSAKYO KU address 212777 1% 57% 8
5 ASYMMETRIC ALKYLATION authKW 201212 3% 21% 21
6 SYNTHET ORGAN CHEMSAKYO KU address 175438 1% 54% 7
7 CHIRAL QUATERNARY AMMONIUM BROMIDE authKW 139640 0% 100% 3
8 CHIRAL PHASE TRANSFER CATALYSIS authKW 106389 1% 57% 4
9 CHIRAL QUATERNARY AMMONIUM SALT authKW 104728 0% 75% 3
10 PHASE TRANSFER CATALYTIC ALKYLATION authKW 104728 0% 75% 3

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 12898 63% 0% 410
2 Chemistry, Multidisciplinary 1363 31% 0% 202
3 Chemistry, Inorganic & Nuclear 229 8% 0% 50
4 Chemistry, Applied 146 5% 0% 34
5 Chemistry, Physical 59 10% 0% 63
6 Chemistry, Medicinal 10 2% 0% 13
7 Crystallography 1 1% 0% 7
8 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY -0 0% 0% 1
9 Polymer Science -0 1% 0% 7
10 Mathematical & Computational Biology -1 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 SPECIAL ORGANOCATALYT CHEM 296419 2% 58% 11
2 SPECIAL ORGANOCATALYT CHEMSAKYO KU 212777 1% 57% 8
3 SYNTHET ORGAN CHEMSAKYO KU 175438 1% 54% 7
4 CHEM SYNTHET ORGAN CHEM 93093 0% 100% 2
5 CHEMSPECIAL ORGANOCATALYT CHEM 93093 0% 100% 2
6 SCISAKYO KU 71263 1% 22% 7
7 CHINA SYNTHET ORGAN CHEM NAT SUBST 46547 0% 100% 1
8 COBRA FIRCOF 46547 0% 100% 1
9 EQUIPE HETEROCYCLESUMR 6014 FR3038 46547 0% 100% 1
10 FR 2108 46547 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 TETRAHEDRON-ASYMMETRY 9095 7% 0% 45
2 TETRAHEDRON LETTERS 5111 14% 0% 90
3 TETRAHEDRON 2974 7% 0% 49
4 ORGANIC LETTERS 2334 5% 0% 36
5 ORGANIC PROCESS RESEARCH & DEVELOPMENT 1825 2% 0% 11
6 SYNLETT 1715 4% 0% 23
7 ADVANCED SYNTHESIS & CATALYSIS 1460 2% 0% 13
8 ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 1345 5% 0% 34
9 ALDRICHIMICA ACTA 1326 0% 1% 2
10 JOURNAL OF ORGANIC CHEMISTRY 1198 6% 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 PHASE TRANSFER CATALYSIS 461752 16% 10% 103 Search PHASE+TRANSFER+CATALYSIS Search PHASE+TRANSFER+CATALYSIS
2 CHIRAL PHASE TRANSFER CATALYST 281597 2% 55% 11 Search CHIRAL+PHASE+TRANSFER+CATALYST Search CHIRAL+PHASE+TRANSFER+CATALYST
3 ASYMMETRIC ALKYLATION 201212 3% 21% 21 Search ASYMMETRIC+ALKYLATION Search ASYMMETRIC+ALKYLATION
4 CHIRAL QUATERNARY AMMONIUM BROMIDE 139640 0% 100% 3 Search CHIRAL+QUATERNARY+AMMONIUM+BROMIDE Search CHIRAL+QUATERNARY+AMMONIUM+BROMIDE
5 CHIRAL PHASE TRANSFER CATALYSIS 106389 1% 57% 4 Search CHIRAL+PHASE+TRANSFER+CATALYSIS Search CHIRAL+PHASE+TRANSFER+CATALYSIS
6 CHIRAL QUATERNARY AMMONIUM SALT 104728 0% 75% 3 Search CHIRAL+QUATERNARY+AMMONIUM+SALT Search CHIRAL+QUATERNARY+AMMONIUM+SALT
7 PHASE TRANSFER CATALYTIC ALKYLATION 104728 0% 75% 3 Search PHASE+TRANSFER+CATALYTIC+ALKYLATION Search PHASE+TRANSFER+CATALYTIC+ALKYLATION
8 DARZENS REACTION 99204 1% 24% 9 Search DARZENS+REACTION Search DARZENS+REACTION
9 ASYMMETRIC CYCLIZATIONS 93093 0% 100% 2 Search ASYMMETRIC+CYCLIZATIONS Search ASYMMETRIC+CYCLIZATIONS
10 ASYMMETRIC TWO CENTER CATALYST 93093 0% 100% 2 Search ASYMMETRIC+TWO+CENTER+CATALYST Search ASYMMETRIC+TWO+CENTER+CATALYST

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 OOI, T , MARUOKA, K , (2007) RECENT ADVANCES IN ASYMMETRIC PHASE-TRANSFER CATALYSIS.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION. VOL. 46. ISSUE 23. P. 4222 -4266 131 65% 347
2 SHIRAKAWA, S , MARUOKA, K , (2013) RECENT DEVELOPMENTS IN ASYMMETRIC PHASE-TRANSFER REACTIONS.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION. VOL. 52. ISSUE 16. P. 4312-4348 121 55% 160
3 HASHIMOTO, T , MARUOKA, K , (2007) RECENT DEVELOPMENT AND APPLICATION OF CHIRAL PHASE-TRANSFER CATALYSTS.CHEMICAL REVIEWS. VOL. 107. ISSUE 12. P. 5656-5682 121 70% 340
4 MARUOKA, K , (2008) PRACTICAL ASPECTS OF RECENT ASYMMETRIC PHASE-TRANSFER, CATALYSIS.ORGANIC PROCESS RESEARCH & DEVELOPMENT. VOL. 12. ISSUE 4. P. 679-697 102 71% 95
5 KANEKO, S , KUMATABARA, Y , SHIRAKAWA, S , (2016) A NEW GENERATION OF CHIRAL PHASE-TRANSFER CATALYSTS.ORGANIC & BIOMOLECULAR CHEMISTRY. VOL. 14. ISSUE 24. P. 5367 -5376 72 67% 4
6 LIU, SY , KUMATABARA, Y , SHIRAKAWA, S , (2016) CHIRAL QUATERNARY PHOSPHONIUM SALTS AS PHASE-TRANSFER CATALYSTS FOR ENVIRONMENTALLY BENIGN ASYMMETRIC TRANSFORMATIONS.GREEN CHEMISTRY. VOL. 18. ISSUE 2. P. 331 -341 53 76% 6
7 VACHON, J , LACOUR, J , (2006) RECENT DEVELOPMENTS IN ENANTIOSELECTIVE PHASE TRANSFER CATALYSIS USING CHIRAL AMMONIUM SALTS.CHIMIA. VOL. 60. ISSUE 5. P. 266-275 80 68% 63
8 LYGO, B , BEAUMONT, DJ , (2007) TWO HIGHLY EFFECTIVE PHASE-TRANSFER CATALYSTS FOR THE ENANTIOSELECTIVE SYNTHESIS OF ALPHA-AMINO ACID DERIVATIVES.CHIMIA. VOL. 61. ISSUE 5. P. 257-262 72 82% 2
9 OOI, T , MARUOKA, K , (2007) DEVELOPMENT AND APPLICATIONS OF C-2-SYMMETRIC, CHIRAL, PHASE-TRANSFER CATALYSTS.ALDRICHIMICA ACTA. VOL. 40. ISSUE 3. P. 77 -86 82 65% 36
10 O'DONNELL, MJ , (2004) THE ENANTIOSELECTIVE SYNTHESIS OF ALPHA-AMINO ACIDS BY PHASE-TRANSFER CATALYSIS WITH ACHIRAL SCHIFF BASE ESTERS.ACCOUNTS OF CHEMICAL RESEARCH. VOL. 37. ISSUE 8. P. 506-517 55 70% 456

Classes with closest relation at Level 1


Rank Class id link
1 9974 CHELATED ENOLATES//UNSATURATED AMINO ACIDS//CATIONIC GLYCINE EQUIVALENT
2 18631 OPERATIONALLY CONVENIENT CONDITIONS//1 3 PROTON SHIFT REACTION//HIGASHI YODOGAWA KU
3 29399 TANDEM TRANSFORMATION//TANDEM CLEAVAGE//ACTIVATED ALKYNES
4 743 ORGANOCATALYSIS//MICHAEL ADDITION//ASYMMETRIC CATALYSIS
5 7997 DIOXIRANES//DIMETHYLDIOXIRANE//EPOXIDATION
6 27552 MEFLOQUINE DERIVATIVES//1 AZABICYCLO331NONADIENES//CINCHONA ALKALOIDS
7 30774 ISOCYANOACETATES//ISOCYANOESTERS//PRECURSOR OF ACTIVE FORM
8 20553 KAITOCEPHALIN//ALPHA SUBSTITUTED SERINE//CONAGENIN
9 7418 PHASE TRANSFER CATALYSIS//THIRD LIQUID PHASE//TRIPHASE CATALYSIS
10 37413 CELOSIA ARGENTEA//CELOSIAN//CELOSIA ARGENTEA L

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