393770
1,3-Benzodithiolylium tetrafluoroborate
98%
Synonyme(s) :
BDTF
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About This Item
Formule empirique (notation de Hill) :
C7H5BF4S2
Numéro CAS:
Poids moléculaire :
240.05
Beilstein:
4731453
Numéro MDL:
Code UNSPSC :
12352100
ID de substance PubChem :
Nomenclature NACRES :
NA.22
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Essai
98%
Forme
solid
Pf
150 °C (dec.) (lit.)
Chaîne SMILES
F[B-](F)(F)F.c1ccc2[s+]csc2c1
InChI
1S/C7H5S2.BF4/c1-2-4-7-6(3-1)8-5-9-7;2-1(3,4)5/h1-5H;/q+1;-1
Clé InChI
CUSWPJQKCZMDPY-UHFFFAOYSA-N
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Description générale
1,3-Benzodithiolylium tetrafluoroborate (BDTF, 1,3-BDYT) is an electrophilic compound.[1] It is a salt of 1,3-benzodithiolylium ion.[2]
1,3-Benzodithiolylium tetrafluoroborate is a carbenium ionic compound.[3] It has been synthesized by reacting 1,3-benzodithiole with trityl tetrafluoroborate.[2] It is widely used as an α-alkylating agent for the enantioselective α-alkylation of aldehydes.[4],[5] The nature of adsorption of 1,3-benzodithiolylium tetrafluoroborate on various carbon nanotubes (CNTs) has been studied.[1] 1,3-Benzodithiolylium tetrafluoroborate reacts with different nucleophilic reagents at the 2-position to form the respective 1,3-benzodithioles.[2]
Application
1,3-Benzodithiolylium tetrafluoroborate may be used in the synthesis of the following:
- Dibenzotetrathiafulvalene by reacting with 1,8-diazabicyclo[5.4.0]undec-7-ene.[6]
- Substituted arylcarbenium ions by reacting with boronic derivatives.[3]
- α-(1,3-benzodithiol-2-ylidene) ketones and 1,3-benzodithiole by reacting with ketones.[7]
- 2-styryl-1,3-benzodithioles by reacting with styryl-type cobaloximes.[8]
- 2-(3-indolyl)-1,3-benzodithiolylium tetrafluoroborate by reacting with indole.[9]
- 2-(1,3-benzodithiol-2-ylidene)-3,5-cyclohexadien-1-ones and 4-(1,3-benzodithiol-2-ylidene)-2,5-cyclohexadien-1-ones by reacting with 2,4- and 2,6-disubstituted phenols.[10]
Mention d'avertissement
Warning
Mentions de danger
Conseils de prudence
Classification des risques
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Organes cibles
Respiratory system
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 3
Équipement de protection individuelle
dust mask type N95 (US), Eyeshields, Gloves
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1, 3-Benzodithiolylium salts. Synthesis and reactions with nucleophilic reagents.
Nakayama J, et al
Bulletin of the Chemical Society of Japan, 49(12), 3567-3573 (1976)
The Facile and Direct Formylation of Organoboron Aromatic Compounds with Benzodithiolylium Tetrafluoroborate.
Petruzziello D, et al
European Journal of Organic Chemistry, 2013(22), 4909-4917 (2013)
Masashi Mamada et al.
Acta crystallographica. Section E, Structure reports online, 65(Pt 9), o2083-o2083 (2009-01-01)
Crystals of the title compound (DBTTF), C(14)H(8)S(4), feature a triclinic polymorph different from two known monoclinic polymorphs. In this form, there are two independent centrosymmetric half-mol-ecules in the asymmetric unit. Although the mol-ecular orientations are relatively similar to one of
Riccardo Porta et al.
ChemSusChem, 7(12), 3534-3540 (2014-10-23)
The use of immobilized metal-free catalysts offers the unique possibility to develop sustainable processes in flow mode. The challenging intermolecular organocatalyzed enantioselective alkylation of aldehydes was performed for the first time under continuous flow conditions. By using a packed-bed reactor
Heterofulvalenes. II. Synthesis and reaction of 2, 3: 7, 8-dibenzo-1, 4-dithia-6-azafulvalene.
Nakayama J, et al
Bulletin of the Chemical Society of Japan, 53(6), 1661-1665 (1980)
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