Welcome to LookChem.com Sign In|Join Free

CAS

  • or
Benzenemethanesulfinyl chloride, also known as α-toluenesulfonyl chloride or tosyl chloride, is an organic compound with the chemical formula C7H7ClOS. It is a colorless, oily liquid that is soluble in organic solvents and has a pungent odor. This chemical is widely used as a reagent in organic synthesis, particularly for the preparation of tosylates, which are important intermediates in various chemical reactions. It is also used as a protecting group in peptide synthesis and as a coupling agent in the formation of carbon-carbon bonds. Due to its reactivity, it is essential to handle benzenemethanesulfinyl chloride with caution, as it can cause severe skin burns and eye damage.

41719-05-5

Post Buying Request

41719-05-5 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

41719-05-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 41719-05-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,7,1 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 41719-05:
(7*4)+(6*1)+(5*7)+(4*1)+(3*9)+(2*0)+(1*5)=105
105 % 10 = 5
So 41719-05-5 is a valid CAS Registry Number.

41719-05-5Relevant articles and documents

Sulfinyl chlorides through the oxidative chlorination of sulfenyl derivatives with trimethylsilyl acetate/sulfuryl chloride system

Drabowicz,Bujnicki,Dudzinski

, p. 1207 - 1213 (1994)

A new and useful procedure for the synthesis of sulfinyl chlorides is described involving a combined action of trimethylsilyl acetate and sulfuryl chloride as a oxidative chlorination system on sulfenyl derivatives.

Direct conversion of sulfinamides to thiosulfonates without the use of additional redox agents under metal-free conditions

Ji, Yuan-Zhao,Li, Hui-Jing,Wang, Jun-Hu,Wu, Yan-Chao,Zhang, Chi

, p. 9291 - 9298 (2021/11/13)

Direct conversion of sulfinamides to thiosulfonates is described. Without the use of additional redox agents, the reaction proceeds smoothly in the presence of TFA under metal-free conditions. This protocol possesses many advantages such as odourless and stable starting materials, broad substrate scope, selective synthesis, and mild reaction conditions. This journal is

Allicin and derivates are cysteine protease inhibitors with antiparasitic activity

Waag, Thilo,Gelhaus, Christoph,Rath, Jennifer,Stich, August,Leippe, Matthias,Schirmeister, Tanja

supporting information; experimental part, p. 5541 - 5543 (2010/12/25)

Allicin and derivatives thereof inhibit the CAC1 cysteine proteases falcipain 2, rhodesain, cathepsin B and L in the low micromolar range. The structure-activity relationship revealed that only derivatives with primary carbon atom in vicinity to the thiosulfinate sulfur atom attacked by the active-site Cys residue are active against the target enzymes. Some compounds also show potent antiparasitic activity against Plasmodium falciparum and Trypanosoma brucei brucei.

Intramolecular homolytic substitution of sulfinates and sulfinamides

Coulomb, Julien,Certal, Victor,Larraufie, Marie-Helene,Ollivier, Cyril,Corbet, Jean-Pierre,Mignani, Gerard,Fensterbank, Louis,Lacote, Emmanuel,Malacria, Max

supporting information; experimental part, p. 10225 - 10232 (2010/04/05)

A general and efficient method for the synthesis of cyclic sulfi-nates and sulfinamides based on intra-molecular homolytic substitution (SHi) at the sulfur atom by aryl or alkyl radi-cals is described. Both alkyl and benzo-fused compounds can be accessed di-rectly from easily prepared acyclic pre-cursors. Enantiomerically enriched sulfur-based heterocycles were formed through an SHi process with inversion of configuration at the sulfur atom. Cyclization of prochiral radicals proceeded with varying stereochemical outcomes, depending on the size of the incoming radical. 2-Pyridyl and 2-qui-nolyl radicals led to biaryl compounds, which result from attack onto the ortho position of the arylsulfinate rather than a thiophilic substitution.

Oxidative fragmentations of 2-(trimethylsilyl)ethyl sulfoxides - Routes to alkane-, arene-, and highly substituted 1-alkenesulfinyl chlorides

Schwan, Adrian L.,Strickler, Rick R.,Dunn-Dufault, Robert,Brillon, Denis

, p. 1643 - 1654 (2007/10/03)

The preparation of a collection of alkyl, aryl, and 1-alkenyl 2-(trimethylsilyl)ethyl sulfoxides is outlined, using mostly vinyltrimethylsilane or 2-(trimethylsilyl)ethanesulfenyl chloride (5) as key starting materials. The 2-(trimethylsilyl)ethyl group can be cleaved from many of the sulfoxides under oxidative fragmentation conditions using sulfuryl chloride and the reaction represents a new protocol for sulfinyl chloride synthesis. The method is suitable for most alkane- and arenesulfinyl chlorides (3), but is limited to highly substituted vinylic sulfinyl chlorides. 1-Alkenyl 2-(trimethylsilyl)ethyl sulfoxides with reduced double bond substitution (6, 7, 11) succumb to reactions involving chlorination of the double bond. The β-effect of silicon is invoked to explain the ability of the 2-(trimethylsilyl)ethyl group to induce C-S bond scission under the oxidative cleavage reaction conditions. A mechanism is offered to account for the role played by the β-silicon atom of the 2-(trimethylsilyl)ethyl group. Indeed, the silicon atom is self-sacrificial in that it diverts the course of the reaction from the usual α-carbon chlorination mode to one of oxidative cleavage, whereby the 2-(trimethylsilyl)ethyl group is lost. The overall reaction calls upon the ability of silicon atoms to donate electron density by hyperconjugation.

Atropisomer-selective ligand-coupling reactions of sulfoxides. X-Ray molecular and crystal structures for 2-(thiophen-3-yl>amino)-2-methylpropan-1-ol, 2-(2-hydroxy-1,1-dimethylethyl)-2,3-dihydronaphthoisothiazol-3-one and (R)-(+)-2-bromo-1-(tert...

Baker, Robert W.,Hockless, David C. R.,Pocock, Geoffrey R.,Sargent, Melvyn V.,Skelton, Brian W.,et al.

, p. 2615 - 2630 (2007/10/02)

1-(Alkyl- or aryl-sulfinyl)naphthalenes activated by electron-withdrawing substituents at the 2-position undergo substitution reactions on treatment with Grignard reagents.Evidence suggesting that these transformations proceed through ligand-coupling reactions of ?-sulfuranes is presented.The ligand-coupling reaction of homochiral sulfoxides with 1-naphthylmagnesium bromide furnishes atropisomeric 1,1'-binaphthyls in 60-95percent ee.Single-crystal X-ray structure determinations have been carried out on 2-(thiophen-3-yl>amino)-2-methylpropan-1-ol 18 and 2-(2-hydroxy-1,1-dimethylethyl)-2,3-dihydronaphthoisothiazol-3-one 22, compounds formed through intramolecular nucleophilic and electrophilic attack, respectively, on a neighbouring oxazoline group.The absolute configuration of (R)-(+)-1-(tert-butylsulfinyl)naphthalene 27 was determined by a single-crystal X-ray study of the 2-bromo-derivative 28.

The reaction of 2-trimethylsilylethyl sulfoxides with sulfuryl chloride. A fragmentation route to sulfinyl chlorides

Schwan,Dufault

, p. 3973 - 3974 (2007/10/02)

Sulfinyl chlorides were prepared in good to excellent yields by reacting aryl or alkyl 2-trimethylsilylethyl sulfoxides with SO2Cl2.

Direct Conversion of Thiols to Sulfinyl Chlorides by Sulfuryl Chloride

Youn, Joo-Hack,Herrmann, Rudolf

, p. 72 - 73 (2007/10/02)

Sulfinyl chlorides are prepared in quantitative yield by the reaction of thiols with sulfuryl chloride/acetic acid at low temperature.

A SIMPLE AND EFFICIENT PREPARATION OF SULFINYL CHLORIDES FROM DISULFIDES AND SULFURYL CHLORIDE

Youn, Joo-Hack,Herrmann, Rudolf

, p. 1493 - 1494 (2007/10/02)

Disulfides react with sulfuryl chloride in the presence of acetic acid to form the corresponding sulfinyl chlorides in nearly quantitative yield.

Reactions of Thionyl Chloride with Tetraorganotin(IV) Compounds

Narula, Suraj P.,Sharma, R. K.,Lata, Sneh,Walia, Rita

, p. 246 - 247 (2007/10/02)

The reactions of thionyl chloride with tetraorganotin(IV) derivatives (R4Sn where R = CH3, C2H5, n-C3H7, n-C4H9, C6H5CH2, C6H4CH3) bring about cleavage of tin-carbon bonds to give dialkyl/aryltin(IV) and alkyl/aryl sulphinyl chlorides.The ease of cleavage observed on the basis of the reactivities of R4Sn follows the order: n-C4H9 > n-C3H7 > C2H5 > CH3 > C6H5CH2 >> C6H4CH3.This order is not the same as commonly known in literature.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 41719-05-5