57244-65-2

Upstream product

• 18531-99-2 (S)-[1,1']-binaphthalenyl-2,2'-diol 
• 7460-82-4 diethylene glycol ditosylate 
• 6315-52-2 1,2-bis-tosyloxyethane 
• 602-09-5 1,1'-bi-2-naphthol 

Downstream Products

• 889879-20-3 C₅₄H₄₄N₂O₉S 

Relevant academic research and scientific papers

Asymmetric epoxidation catalyzed by novel azacrown ether-type chiral quaternary ammonium salts under phase-transfer catalytic conditions

Asymmetric epoxidation of (E)-chalcone with alkaline hydrogen peroxide by novel chiral phase-transfer catalysts (chiral PTCs) with quaternary ammonium salts of azacrown ether proceeded in high yield and good enantioselectivity. Remarkably, this reaction d

Synthesis of chiral crown ethers having bromoarylene moieties on their rim. Anomalous behavior of racemic substrates in cyclization to crown ethers

Bis(binaphtho)-22-crown-5 and bis(binaphtho)-22-crown-4, having bromoarylene moities on their rim, were prepared from (R)- and (5)-2,2′-dihydroxy-1,1′-binaphthyl. An acyclic diol, bridged by two (R)-binaphthyl moieties, underwent cyclization reaction with