Class information for:
Level 1: OXAPHOSPHETANES//WITTIG REACTION//HETEROORGANIC BETAINES

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
17537 594 30.4 49%


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
2015 2             ACETYLENIC ESTERS//PHOSPHORUS YLIDES//TRIPHENYLPHOSPHINE 5465
17537 1                   OXAPHOSPHETANES//WITTIG REACTION//HETEROORGANIC BETAINES 594

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 OXAPHOSPHETANES authKW 279869 1% 78% 7
2 WITTIG REACTION authKW 268119 12% 7% 70
3 HETEROORGANIC BETAINES authKW 154215 1% 100% 3
4 MARTIN LIGAND authKW 154215 1% 100% 3
5 PETERSON TYPE REACTIONS authKW 154215 1% 100% 3
6 RASTA RESIN authKW 154215 1% 100% 3
7 STEREOCHEMICAL DRIFT authKW 154215 1% 100% 3
8 1 2 OXAPHOSPHETANES authKW 102810 0% 100% 2
9 1 2 SELENAZETIDINES authKW 102810 0% 100% 2
10 ALKYLAMINOPHOSPHONIUM SALT authKW 102810 0% 100% 2

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 7725 51% 0% 304
2 Chemistry, Multidisciplinary 2178 40% 0% 236
3 Chemistry, Inorganic & Nuclear 546 12% 0% 69
4 Crystallography 8 2% 0% 10
5 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY 4 1% 0% 3
6 Physics, Atomic, Molecular & Chemical 2 2% 0% 13
7 Chemistry, Physical 1 5% 0% 27
8 Chemistry, Applied 1 1% 0% 7
9 Mathematics, Interdisciplinary Applications 0 1% 0% 4
10 Chemistry, Medicinal 0 1% 0% 5

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 DEP ORGANOMET ORGANOMETALLOID CHEM 51405 0% 100% 1
2 JIANGXI PROV ENGN ECOL CHEM IND 51405 0% 100% 1
3 PUBL WORKS ENVIRONM ENGN 51405 0% 100% 1
4 STRUCT INVEST MOL 51405 0% 100% 1
5 STUDIES STRUCT MOL 51405 0% 100% 1
6 SYNTHESE BIOORGANLC1 51405 0% 100% 1
7 INVEST MOL STRUCT 51403 0% 50% 2
8 STATE CHEM TECHNOL ORGANOELEMENT CPDS 44306 1% 17% 5
9 SCI CHEM FUKAZAWA SETAGAYA KU 25702 0% 50% 1
10 SCI TECHNOL LIFE 25702 0% 50% 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 PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS 10695 8% 0% 46
2 TETRAHEDRON LETTERS 3200 11% 0% 68
3 SYNTHETIC COMMUNICATIONS 2819 5% 0% 28
4 RUSSIAN CHEMICAL BULLETIN 1550 3% 0% 17
5 HETEROATOM CHEMISTRY 1518 1% 0% 8
6 TOPICS IN STEREOCHEMISTRY 1510 0% 3% 1
7 JOURNAL OF ORGANIC CHEMISTRY 1483 7% 0% 39
8 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 1335 8% 0% 50
9 RUSSIAN JOURNAL OF GENERAL CHEMISTRY 1304 2% 0% 13
10 SYNLETT 1289 3% 0% 19

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 OXAPHOSPHETANES 279869 1% 78% 7 Search OXAPHOSPHETANES Search OXAPHOSPHETANES
2 WITTIG REACTION 268119 12% 7% 70 Search WITTIG+REACTION Search WITTIG+REACTION
3 HETEROORGANIC BETAINES 154215 1% 100% 3 Search HETEROORGANIC+BETAINES Search HETEROORGANIC+BETAINES
4 MARTIN LIGAND 154215 1% 100% 3 Search MARTIN+LIGAND Search MARTIN+LIGAND
5 PETERSON TYPE REACTIONS 154215 1% 100% 3 Search PETERSON+TYPE+REACTIONS Search PETERSON+TYPE+REACTIONS
6 RASTA RESIN 154215 1% 100% 3 Search RASTA+RESIN Search RASTA+RESIN
7 STEREOCHEMICAL DRIFT 154215 1% 100% 3 Search STEREOCHEMICAL+DRIFT Search STEREOCHEMICAL+DRIFT
8 1 2 OXAPHOSPHETANES 102810 0% 100% 2 Search 1+2+OXAPHOSPHETANES Search 1+2+OXAPHOSPHETANES
9 1 2 SELENAZETIDINES 102810 0% 100% 2 Search 1+2+SELENAZETIDINES Search 1+2+SELENAZETIDINES
10 ALKYLAMINOPHOSPHONIUM SALT 102810 0% 100% 2 Search ALKYLAMINOPHOSPHONIUM+SALT Search ALKYLAMINOPHOSPHONIUM+SALT

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 BYRNE, PA , GILHEANY, DG , (2013) THE MODERN INTERPRETATION OF THE WITTIG REACTION MECHANISM.CHEMICAL SOCIETY REVIEWS. VOL. 42. ISSUE 16. P. 6670-6696 49 55% 57
2 BYRNE, PA , GILHEANY, DG , (2012) UNEQUIVOCAL EXPERIMENTAL EVIDENCE FOR A UNIFIED LITHIUM SALT-FREE WITTIG REACTION MECHANISM FOR ALL PHOSPHONIUM YLIDE TYPES: REACTIONS WITH BETA-HETEROATOM-SUBSTITUTED ALDEHYDES ARE CONSISTENTLY SELECTIVE FOR CIS-OXAPHOSPHETANE-DERIVED PRODUCTS.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. VOL. 134. ISSUE 22. P. 9225 -9239 51 53% 29
3 GU, YH , TIAN, SK , (2012) OLEFINATION REACTIONS OF PHOSPHORUS-STABILIZED CARBON NUCLEOPHILES.STEREOSELECTIVE ALKENE SYNTHESIS. VOL. 327. ISSUE . P. 197-238 67 36% 22
4 KAWASHIMA, T , (2011) CHEMISTRY OF FOUR-MEMBERED RING COMPOUNDS CONTAINING A HYPERVALENT SULFUR ATOM AND A HETEROATOM AT THE NEIGHBOR POSITIONS.PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS. VOL. 186. ISSUE 5. P. 1046 -1054 28 80% 2
5 JARWAL, N , MEENA, JS , THANKACHAN, PP , (2016) THE E/Z SELECTIVITY IN GAS PHASE WITTIG REACTION OF NON-STABILIZED, SEMI-STABILIZED AND STABILIZED ME3P AND PH3P PHOSPHORUS YLIDES WITH MONOCYCLIC KETONE: A COMPUTATIONAL STUDY.COMPUTATIONAL AND THEORETICAL CHEMISTRY. VOL. 1093. ISSUE . P. 29 -39 28 67% 0
6 JARWAL, N , THANKACHAN, PP , (2015) THEORETICAL STUDY OF THE WITTIG REACTION OF CYCLIC KETONES WITH PHOSPHORUS YLIDE.JOURNAL OF MOLECULAR MODELING. VOL. 21. ISSUE 4. P. - 23 82% 0
7 BYRNE, PA , MULDOON, J , ORTIN, Y , MULLER-BUNZ, H , GILHEANY, DG , (2014) INVESTIGATIONS ON THE OPERATION OF STEREOCHEMICAL DRIFT IN THE WITTIG REACTION BY NMR AND VARIABLE-TEMPERATURE NMR SPECTROSCOPY OF OXAPHOSPHETANE INTERMEDIATES AND THEIR QUENCH PRODUCTS.EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. VOL. 2014. ISSUE 1. P. 86-98 17 81% 4
8 KAWASHIMA, T , (1996) SYNTHESIS AND STRUCTURES OF THE INTERMEDIATES OF THE WITTIG, PETERSON, AND THEIR RELATED REACTIONS.JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN. VOL. 54. ISSUE 8. P. 696 -707 33 70% 4
9 ROBIETTE, R , RICHARDSON, J , AGGARWAL, VK , HARVEY, JN , (2006) REACTIVITY AND SELECTIVITY IN THE WITTIG REACTION: A COMPUTATIONAL STUDY.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. VOL. 128. ISSUE 7. P. 2394 -2409 25 57% 92
10 MRACEC, M , PASCARIU, A , BERGER, S , MRACEC, M , (2007) NEW POSSIBLE IONIC STRUCTURES IN WITTIG REACTION - ANALYSIS OF STABILITY AND ROTATION BARRIERS BY SEMIEMPIRICAL PM3 METHOD.INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY. VOL. 107. ISSUE 8. P. 1782 -1793 23 68% 2

Classes with closest relation at Level 1


Rank Class id link
1 35310 TRIPHENYLPHOSPHONIUM YLIDES//YLIDIC CONFORMATION//ACYL STRETCHING FREQUENCIES
2 15286 SULFUR YLIDE//ARSONIUM YLIDE//CHIRAL SULFIDE
3 33778 ALPHA BETA UNSATURATED HYDROXY ESTERS//DIOL DESYMMETRIZATION//IODOYLIDES
4 22187 RMN P 31//HORNER WADSWORTH EMMONS REACTION//RMN C 13
5 17088 PHOSPHORUS YLIDES//TRIPARATOLYLPHOSPHINE//MERCURYII HALIDES COMPLEXES
6 24250 BORON 11 NMR//FLUOROBORON CATIONS//1 5 THIAZOCINE DERIVATIVE
7 27363 N ARYL BETA ALANINES//1 3 DIASTEREOSELECTIVE SYNTHESIS//1 4 5 6 TETRAHYDROPYRIDONE
8 17391 HYDROPHOSPHORANES//HYDRIDOPHOSPHORANES//BICYCLOPHOSPHORANES
9 34987 CD ZEOLITES//3 METHYL 1 3 OXAZOLIDIN 2 ONE//4 4 5 5 TETRAFLUORO 3 TRIFLUOROMETHYL 1 3 OXAZOLIDIN 2 ONE
10 7334 ACETYLENIC ESTERS//DIALKYL ACETYLENEDICARBOXYLATES//TRIPHENYLPHOSPHINE

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