(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

Important Notice

This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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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 Basic information

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
Synonyms:	2-PENTAFLUOROPHENYL-6,10B-DIHYDRO-4H,5AH-5-OXO-3,10C-DIAZA-2-AZONIACYCLOPENTA[C]FLUORINE 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 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
CAS:	872143-57-2
MF:	C18H11BF9N3O
MW:	467.1
EINECS:
Product Categories:	Chiral NHC;Chiral Nitrogen
Mol File:	872143-57-2.mol

(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

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

Safety Information

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

MSDS Information

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

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

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