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

Reaction

Product 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
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;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)-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)-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
CBNumber: CB9234503
Molecular Formula: C18H11BF9N3O
Formula Weight: 467.1
MOL File: 872143-57-2.mol

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(5AR,10BS)-(+)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO[2,1-B][1,2,4]TRIZOLO[4,3-D][1,4]OXAZINIUM TETRAFLUOROBORATE Property

Melting point:: 233-237 °C
storage temp.: 2-8°C
form: Powder
color: light brown

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Safety

Hazard Codes: C
Risk Statements: 34
Safety Statements: 26-36/37/39-45
RIDADR: UN 1759 8/PG 2
WGK Germany: 3

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P363Wash contaminated clothing before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 674788
Product name: 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
Purity: 97%
Packaging: 250mg
Price: $140.5
Updated: 2025/07/31

Strem Chemicals

Product number: 07-0415
Product name: (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%
Packaging: 250mg
Price: $164
Updated: 2024/03/01

Strem Chemicals

Product number: 07-0415
Product name: (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%
Packaging: 1g
Price: $492
Updated: 2024/03/01

ChemScene

Product number: CS-0086427
Product name: (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-iumtetrafluoroborate
Purity: >97.0%
Packaging: 100mg
Price: $81
Updated: 2021/12/16

ChemScene

Product number: CS-0086427
Product name: (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-iumtetrafluoroborate
Purity: >97.0%
Packaging: 250mg
Price: $198
Updated: 2021/12/16

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(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,Usage,Production

Reaction

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

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

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(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

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872143-57-2, (5AR,10BS)-(+)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO[2,1-B][1,2,4]TRIZOLO[4,3-D][1,4]OXAZINIUM TETRAFLUOROBORATERelated Search:

(5aR,10bS)-5a,10b-dihydro-2-(2,4,6-trimethylphenyl)-4H,6HIndeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate (5AS, 10BR)-(-)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO[2,1-B][1,2,4]TRIZOLO[4,3-D][1,4]OXAZINIUM TETRAFLUOROBORATE (5aS,10bR)-5a,10b-dihydro-2-(2,4,6-trimethylphenyl)-4H,6HIndeno[2,1-b][1,2,4]triazolo[4,3-d][1,4]oxazinium tetrafluoroborate Fluorine (5AR,10BS)-(+)-5A,10B-DIHYDRO-2-(PENTAFLUOROPHENYL)-4H,6H-INDENO[2,1-B][1,2,4]TRIZOLO[4,3-D][1,4]OXAZINIUM TETRAFLUOROBORATE (1S,2R)-(-)-cis-1-Amino-2-indanol

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

(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

872143-57-2

C18H11BF9N3O

Other Organocatalysts

Chiral Catalysts, Ligands, and Reagents

Asymmetric Synthesis

Chiral NHC

Chiral Nitrogen