393770
1,3-Benzodithiolylium tetrafluoroborate
98%
Synonym(s):
BDTF
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About This Item
Empirical Formula (Hill Notation):
C7H5BF4S2
CAS Number:
Molecular Weight:
240.05
Beilstein:
4731453
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
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Assay
98%
form
solid
mp
150 °C (dec.) (lit.)
SMILES string
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
InChI key
CUSWPJQKCZMDPY-UHFFFAOYSA-N
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General description
1,3-Benzodithiolylium tetrafluoroborate (BDTF, 1,3-BDYT) is an electrophilic compound. It is a salt of 1,3-benzodithiolylium ion.
1,3-Benzodithiolylium tetrafluoroborate is a carbenium ionic compound. It has been synthesized by reacting 1,3-benzodithiole with trityl tetrafluoroborate. It is widely used as an α-alkylating agent for the enantioselective α-alkylation of aldehydes., The nature of adsorption of 1,3-benzodithiolylium tetrafluoroborate on various carbon nanotubes (CNTs) has been studied. 1,3-Benzodithiolylium tetrafluoroborate reacts with different nucleophilic reagents at the 2-position to form the respective 1,3-benzodithioles.
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.
- Substituted arylcarbenium ions by reacting with boronic derivatives.
- α-(1,3-benzodithiol-2-ylidene) ketones and 1,3-benzodithiole by reacting with ketones.
- 2-styryl-1,3-benzodithioles by reacting with styryl-type cobaloximes.
- 2-(3-indolyl)-1,3-benzodithiolylium tetrafluoroborate by reacting with indole.
- 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.
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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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)
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)
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
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)
Reaction of styryl-type bis-dimethylglyoximato (pyridine) cobalt (iii), styryl cobaloximes, with 1, 3-benzodithiolylium tetrafluoroborate.
Miura K and Tada M
Chemistry Letters (Jpn), 7(10), 1139-1142 (1978)
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