13411-42-2 Usage
Chemical Properties
CLEAR COLORLESS TO SLIGHTLY YELLOW LIQUID
Physical properties
bp 54–55 °C/0.17 mmHg.
Uses
Different sources of media describe the Uses of 13411-42-2 differently. You can refer to the following data:
1. A versatile acyl anion equivalent.1,2
2. 2-Trimethylsilyl-1,3-dithiane is the precursor of dithioketene acetals which are good substrates for
both cationic and anionic cyclization processes; the anion reacts with unsaturated ketones and aldehydes to give vinyl dithioketene acetals that can be used as dienes or for the preparation of substituted α,β-unsaturated alkyl ketones; alkylation of the anion provides a general synthesis of acylsilanes. It participates the following reactions: Thioketene Acetals, Cationic and Anionic Cyclizations, Unsaturated Dithioketene Acetals, Acylsilanes, Multicomponent Linchpin Reactions, Formation of Bis(acylsilanes) etc.
Preparation
2-Trimethylsilyl-1,3-dithiane is prepared by alkylation of 2-lithio-1,3-
dithiane with chlorotrimethylsilane (eq 1).
General Description
2-(Trimethylsilyl)-1,3-dithiane participates in Lewis base-catalyzed 1,3-dithiane addition to electrophiles such as carbonyl compounds and N-substituted aldimines. It undergoes novel diazo transfer reaction with tosyl azide in hexamethylphosphoramide-THF to yield 2-diazo-1,3-dithiane, which on decomposition yields formal carbene adducts. It is a versatile acyl anion equivalent.
Purification Methods
Fractionally distil the dithiane through an efficient column and collect the fractions that have the correct NMR and IR spectra. 1H NMR (CCl4) 6.36 (SiMe3), 9.87 (SCHS) and dithiane H at 7 and 8 (ratio 1:9:4:2) from Me4Si; UV 244nm ( 711), sh 227nm ( 800). [Corey et al. J Am Chem Soc 89 max 434 1967.]
Check Digit Verification of cas no
The CAS Registry Mumber 13411-42-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,1 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 13411-42:
(7*1)+(6*3)+(5*4)+(4*1)+(3*1)+(2*4)+(1*2)=62
62 % 10 = 2
So 13411-42-2 is a valid CAS Registry Number.
InChI:InChI=1/C7H16S2Si/c1-10(2,3)7-8-5-4-6-9-7/h7H,4-6H2,1-3H3
13411-42-2Relevant articles and documents
Antioxidant having difluoromethoxy group, liquid crystal composition, and liquid crystal display device
-
Page/Page column 75-76, (2020/03/25)
A compound represented by formula (1), a liquid crystal composition to which the compound is added, and a liquid crystal display device containing the composition. In formula (1), R1 is hydrogen or alkyl having 1 to 20 carbons, or the like; Rs
Trimethylsilyloxide-Catalysed Peterson Olefinations with 2,2-Bis(trimethylsilyl)-1,3-dithiane
Manvar, Atul,O'Shea, Donal F.
supporting information, p. 7259 - 7263 (2015/11/25)
The synthesis of the reagent 2,2-bis(trimethylsilyl)-1,3-dithiane was directly achieved in an excellent yield from 1,3-dithiane in one step. The bench-stable reagent can be utilized for Peterson olefinations using either TMSOK/Bu4NCl or fluorid
Intramolecular Michael-type additions to vinyl bissulfoxides: Enantioselective synthesis of chiral aldehydes
Gehring, Timo,Podlech, Joachim,Rothenberger, Alexander
experimental part, p. 2476 - 2487 (2009/04/07)
The diastereoselective auxiliary-based intramolecular Michael-type additions to alkylidene bissulfoxides derived from dithiane and dithiolane were investigated. Utilization of substrates bearing N- and O-nucleophilic functions led to the formation of the
