247-16-5

Upstream product

• 108847-02-5 benzo[b]thiophen-2-ylmercapto-acetaldehyde-dimethylacetal 
• 77128-42-8 2,3-Dihydro-benzo[b]thieno[3,2-d]thiophene 
• 77128-40-6 (3aR,8aR)-2,3-Dihydro-benzo[b]thieno[3,2-d]thiophen-3a-ol 
• 50779-55-0 benzothiophen-2-yllithium 
• 30214-04-1 Benzo[b]thiophene-2-thiol 
• 6320-03-2 2-chlorothiphenol 

Relevant academic research and scientific papers

Facile Synthesis of Thienoacenes via Transition-Metal-Free Ladderization

Herein, we report a facile transition-metal-free approach to sulfur-containing heteroacenes from fluorinated oligophenylenes. Unlike most existing methods, the presented approach is not restricted to simple dibenzothiophene derivatives and thus appears to

Organic electroluminescent material and application thereof

The invention discloses a compound represented by a general formula (1), wherein X and X are respectively and independently selected from S and O, L is one selected from a single bond, substituted or unsubstituted C6-C30 arylene and substituted or unsubstituted C3-C30 heteroarylene, Ar is one selected from substituted or unsubstituted C6-C30 aryl and substituted or unsubstituted C3-C30heteroaryl, R and R are independently selected from hydrogen, C1-C12 alkyl, C1-C12 alkoxy, halogen, cyano, nitro, hydroxyl, silyl, amino, substituted or unsubstituted C6-C30 arylamino, substituted or unsubstituted C3-C30 heteroarylamino, substituted or unsubstituted C6-C30 aryl and substituted or unsubstituted C3-C30 heteroaryl, and m and n are integers from 0 to 4. The compound provided bythe invention as a luminescent material in an OLED device shows excellent device performance and stability. The invention also discloses an organic electroluminescent device adopting the compound with the general formula.

Palladium(ii)-catalyzed synthesis of dibenzothiophene derivatives via the cleavage of carbon-sulfur and carbon-hydrogen bonds

A new process has been developed for the palladium(ii)-catalyzed synthesis of dibenzothiophene derivatives via the cleavage of C-H and C-S bonds. In contrast to the existing methods for the synthesis of this scaffold by C-H functionalization, this new catalytic C-H/C-S coupling method does not require the presence of an external stoichiometric oxidant or reactive functionalities such as C-X or S-H, allowing its application to the synthesis of elaborate π-systems. Notably, the product-forming step of this reaction lies in an oxidative addition step rather than a reductive elimination step, making this reaction mechanistically uncommon.

PHOTOCHEMICAL RING CLOSURE OF α,α-BISULFENYLATED CARBONYL COMPOUNDS STEREOSELECTIVE FORMATION OF CIS-DIHYDROBENZOTHIOPHENES

Photochemistry of α,α-bisulfenylated ketone has been investigated.Irradiation of 2-phenylthiodihydrothiophen-3-one (1) in benzene gave the radical recombination products 9 (63percent) and 10 (49percent).In a polar solvent, the ionic chemistry became predominant.Brief irradiation of 1 in acetonitrile and methanol gave the cis-fused dihydrothiophene 11 as the major product in 43percent and 20percent yields, respectively.The stereoselective photocyclization was generally observed for other ketones (2-8) in acetonitrile solution (Table 1).The photoproducts were easily dehydrated by treating with boron trifluoride etherate to give the corresponding benzothiophenes in high yields.Simple α-phenylthioketones are photoinert under the same conditions.The mechanism of this novel photocyclization of bisulfenylated ketones is also discussed.