ChemicalBook >> CAS DataBase List >>(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate

(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate

CAS No.
872143-57-2
Chemical Name:
(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate
Synonyms
5A(R),10B(S)-5A,10B-DIHYDRO-2-(PENTAFLU&;5A(R),10B(S)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO(2,1-B)(1,2,4)TRIA;(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]ox;2-PENTAFLUOROPHENYL-6,10B-DIHYDRO-4H,5AH-5-OXO-3,10C-DIAZA-2-AZONIACYCLOPENTA[C]FLUORINE TETRAFLUOROBORATE;(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluorobo;5a(R),10b(S)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate;(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate;(5aR,10bS)-2-(Perfluorophenyl)-4,5a,6,10b-tetrahydro-2H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate;5a(R),10b(S)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate 97%;(5aR,10bS)-2-(perfluorophenyl)-2,5a,6,10b-tetrahydro-4H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate
CBNumber:
CB9234503
Molecular Formula:
C18H11BF9N3O
Molecular Weight:
467.1
MDL Number:
MFCD08457666
MOL File:
872143-57-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:56:19

(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate Properties

Melting point 233-237 °C
storage temp. 2-8°C
form Powder
color light brown
InChI 1S/C18H11F5N3O.BF4/c19-12-13(20)15(22)18(16(23)14(12)21)26-7-25-11(24-26)6-27-10-5-8-3-1-2-4-9(8)17(10)25;2-1(3,4)5/h1-4,7,10,17H,5-6H2;/q+1;-1/t10-,17+;/m1./s1
InChIKey CPCMDOOTVHDRTM-CVJFODCESA-N
SMILES F[B-](F)(F)F.Fc1c(F)c(F)c(c(F)c1F)-[n+]2c[n@@H]3[C@@H]4[C@@H](Cc5ccccc45)OCc3n2
UNSPSC Code 12352005
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
PPE Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 1759 8/PG 2
WGK Germany  3
Storage Class 8A - Combustible corrosive hazardous materials
Hazard Classifications Eye Dam. 1
Skin Corr. 1B

(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 674788 5a(R),10b(S)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate 97% 872143-57-2 250mg $299 2026-04-30 Buy
Strem Chemicals 07-0415 (5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate, min. 98% min.98% 872143-57-2 250mg $171 2026-04-30 Buy
Strem Chemicals 07-0415 (5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate, min. 98% min.98% 872143-57-2 1g $510 2026-04-30 Buy
Synthonix P62651 (5aR,10bS)-2-(Perfluorophenyl)-4,5a,6,10b-tetrahydro-2H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate >98% 872143-57-2 100mg $45 2026-05-06 Buy
Synthonix P62651 (5aR,10bS)-2-(Perfluorophenyl)-4,5a,6,10b-tetrahydro-2H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate >98% 872143-57-2 250mg $90 2026-05-06 Buy
Product number Packaging Price Buy
674788 250mg $299 Buy
07-0415 250mg $171 Buy
07-0415 1g $510 Buy
P62651 100mg $45 Buy
P62651 250mg $90 Buy

(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate Chemical Properties, Uses, Production

Reaction

  1. Reagent used in the highly enantioand diastereoselective, catalytic intramolecular Stetter reaction.
  2. Direct synthesis of α-protio and α-deuterio α-chloro and α-fluoro carboxylic acids via asymmetric hydration.
  3. Chemoselective conversion of α-unbranched aldehydes to amides.
Reactions of 872143-57-2

Uses

5a(R),10b(S)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate can be used as an N-heterocyclic carbene (NHC) organocatalyst in:

  • Benzoin reactions of aldehydes and total synthesis of a natural product named isodarparvinol B.
  • Synthesis of spirocyclic oxindole-dihydropyranones by reacting α-bromo-α,β-unsaturated aldehydes with isatin derivatives.
  • Synthesis of 1,4-dicarbonyl compounds through intramolecular Stetter reaction.

(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate Preparation Products And Raw materials

Raw materials

Preparation Products

(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate Suppliers

Global Suppliers ( 49)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Beijing HwrkChemical Technology Co., Ltd 89508211 18501085097 sales.bj@hwrkchemical.com China 9407 55
Daicel Chiral Technologies (China)CO.,LTD 021-50460086-9 15921403865 han_yajun@dctc.daicel.com China 7917 65
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Jiangsu Aikon Biopharmaceutical R&D co.,Ltd. 025-66028182 17714375163 yftan@aikonchem.com China 16674 50
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80
Shanghai Chiral bio-compound co., Ltd. 021-5068 3667/17749785980/1029026415; 17749785980 1029026415@qq.com China 4501 58
ShangHai Angti Biotechnology Co., Ltd. 13764913901 info@angtibio.com China 4975 55
Shanghai Haozhixiang Biotechnology Co., Ltd 526763801 13301653310 526763801@qq.com China 7983 55

(5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate Spectrum

2-PENTAFLUOROPHENYL-6,10B-DIHYDRO-4H,5AH-5-OXO-3,10C-DIAZA-2-AZONIACYCLOPENTA[C]FLUORINE TETRAFLUOROBORATE (5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate, min. 98% 5A(R),10B(S)-5A,10B-DIHYDRO-2-(PENTAFLU& (5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxaziniumtetrafluoroborate,min.98% 5A(R),10B(S)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO(2,1-B)(1,2,4)TRIA (5aR,10bS)-5a,10b-dihydro-2-(2,3,4,5,6-pentafluorophenyl)-4H,6H-Indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate 5a(R),10b(S)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate 97% (5aR,10bS)-5a,10b-Dihydro-2-(2,3,4,5,6-pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium Tetrafluoroborate,99%e.e. (5AR,10BS)-(+)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO[2,1-B][1,2,4]TRIAZOLO[4,3-D][1,4]OXAZINIUMTETRAFLUOROBORATE,MIN.98% (5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate, min. 98% (5aR,10bS)-2-(Perfluorophenyl)-4,5a,6,10b-tetrahydro-2H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate (5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]ox 5a(R),10b(S)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate 5a (R), 10b (S) -5a, 10b dihydro-2- (pentafluorophenyl) -4H, 6H indeno [2,1-b] [1,2,4] triazolo [4,3-d] [1,4] oxazionium tetrafluoroborate 5a(R),10b(S)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate (5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluorobo (5aR,10bS)-2-(pentafluorophenyl)-2,5a,6,10b-tetrahydro-4H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate (5aR,10bS)-2-(perfluorophenyl)-2,5a,6,10b-tetrahydro-4H-indeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazin-11-ium tetrafluoroborate (5aR,10bS)-(+)-5a,10b-Dihydro-2-(pentafluorophenyl)-4H,6H-indeno[2,1-b][1,2,4]trizolo[4,3-d][1,4]oxazinium tetrafluoroborate 872143-57-2 C18H11BF9N3O Other Organocatalysts Chiral Catalysts, Ligands, and Reagents Asymmetric Synthesis Chiral NHC Chiral Nitrogen