83521-65-7

Upstream product

• 540-63-6 ethane-1,2-dithiol 
• 1122-91-4 4-bromo-benzaldehyde 
• 10602-01-4 p-bromobenzaldehyde 1,3-dioxolane 
• 147441-51-8 2-(4-bromophenyl)-1,3-oxathiolane 
• 55605-27-1 (4-bromophenyl)methylenediacetate 
• 35583-17-6 3,9-bis(4-bromophenyl)-2,4,8,10-tetraoxaspiro[5.5]undecane 

Downstream Products

• 1122-91-4 4-bromo-benzaldehyde 
• 106-38-7 para-bromotoluene 
• 1001907-77-2 4,4'-bis-[2-(dimethylsilanyl)vinyl]stilbene 
• 5798-75-4 Ethyl 4-bromobenzoate 

Relevant academic research and scientific papers

Sulfur-Directed Ligand-Free C-H Borylation by Iridium Catalysis

An iridium-catalyzed ortho C-H borylation reaction directed by cyclic dithioacetal moiety is disclosed. A series of borylation products were obtained in moderate to good yields under mild conditions in exclusive mono- and ortho-regioselectivity. Thus, the 1,3-dithiane or 1,3-dithiolane group serves as a remarkable effective directing group for C-H borylation without any ligand assistance. The further transformations of the borylation products are also carried out to change boryl group to other functional groups.

Efficient thioacetalisation of carbonyl compounds

The thioacetalisation of a variety of heterocyclic, aromatic, and aliphatic carbonyl compounds (1 mmol) with ethane-1,2-dithiol (1 mmol) using silica sulphuric acid (SSA) is presented as an efficient heterogeneous catalyst under mild and solvent-free cond

Aluminum hydrogen sulfate [Al(HSO4)3] as an efficient catalyst for the preparation of thioacetals

Aluminum hydrogen sulfate, as a heterogeneous solid acid catalyst, has been used for the mild conversion of carbonyl compounds to their thioacetals using 1,2- and 1,3-dithiol under ambient conditions with short reaction times in high to excellent yield in

Oxidative cross-esterification of dithiolanes with alcohols through a cross-dehydrogenative coupling (CDC)/deprotection sequence

An unprecedented oxidative cross-esterification in an equimolar mixture of dithiolanes, alcohols and water through a CDC/deprotection sequence has been developed. The reaction itself features simple experimental procedures under very mild conditions and offers a new strategic protocol for the direct and efficient synthesis of structurally diverse esters.

Silica-supported phosphorus pentoxide: A reusable catalyst for S,S-acetalization of carbonyl groups under ambient conditions

Phosphorus pentoxide supported on silica gel (P2O 5/SiO2) efficiently acts as a highly active and reusable catalyst for cyclic and non-cyclic S,S-acetalization of a variety of carbonyl compounds under mild, solvent-free an

An efficient method for chemoselective thioacetalization of aldehydes in the presence of a catalytic amount of acidic ionic liquid under solvent-free conditions

A water-stable Br?nsted acidic ionic liquid with an alkane sulfonic acid group was synthesized. This ionic liquid catalyzed the thioacetalization reaction smoothly to afford 1,3-dithianes in excellent yield and less time. In this article we describe a mil

A mild method for the protection of aldehydes as dithioacetals and dithiolanes catalyzed by I2 generated in situ using Fe(NO 3)3.9H2O/Nai under heterogeneous conditions

Structurally diverse aromatic aldehydes were thioacetalated in a clean and efficient reaction with ethane-1,2-dithiol and thiophenol based on the use of I2 generated in situ from Fe(NO3)3.9H 2O/NaI. The reaction occurs in good to high yield in dichloromethane at room temperature and the use of toxic and corrosive molecular iodine is avoided.

2,4,6-Trichloro-1,3,5-triazine catalyzed chemoselective transthioacetalization of aldehyde acetals and oxathioacetals

A mild and efficient transthioacetalization of aldehyde acetals and oxathioacetals was carried out using 2,4,6-trichloro-1,3,5-triazine as a mild and inexpensive catalyst. Chemoselective transacetalization is impressive as aldehyde O,O- and O,S-acetals ar

An efficient, continuous flow technique for the chemoselective synthesis of thioacetals

By optimizing a reagent's residence time within a packed-bed reactor, it is possible to overcome selectivity issues frequently encountered in stirred reaction vessels. This important feature is demonstrated for the chemoselective protection of 4-acetylben

A mild and chemoselective dithioacetalization of aldehydes in the presence of anhydrous copper (II) sulfate

Various aldehydes have been protected with different thiols as dithioacetals with excellent yields using anhydrous copper sulfate as a mild and chemoselective catalyst. The reaction is carried out in a solvent and/or under solvent-free conditions. The transthioacetalization of oxyacetals into dithioacetals was also achieved in an excellent yield. Copyright Taylor & Francis Group, LLC.