787590-29-8

Upstream product

• 24424-99-5 di-tert-butyl dicarbonate 
• 58520-04-0 (1S,2S)-1,2-bis(4-methoxyphenyl)ethane-1,2-diamine 
• 91548-22-0 (S,S)-1,2-Bis(4-hydroxyphenyl)-1,2-ethanediamine 

Downstream Products

• 896155-78-5 (1S,2S)-(+)-1,2-bis(tert-butoxycarbonylamino)-1,2-bis(4-decyloxyphenyl)ethane 
• 787590-31-2 [1,2-bis-(4-benzyloxy-phenyl)-2-tert-butoxycarbonylamino-ethyl]-carbamic acid tert-butyl ester 
• 863117-83-3 {1,2-bis-[4-(3,5-bis-benzyloxy-benzyloxy)-phenyl]-2-tert-butoxycarbonylamino-ethyl}-carbamic acid tert-butyl ester 

Relevant academic research and scientific papers

Novel dendritic ligands of chiral 1,2-diamine and their application in asymmetric hydrogenation of simple aryl ketones

Novel dendritic chiral vicinal diamine ligands have been synthesized and a series of dendritic Ru(BINAP)(diamine) catalysts were developed for asymmetric hydrogenation of a variety of simple aryl ketones in good catalytic activity and high enantioselectiv

Modulation of the reactivity, stability and substrate- and enantioselectivity of an epoxidation catalyst by noncovalent dynamic attachment of a receptor functionality - Aspects on the mechanism of the Jacobsen-Katsuki epoxidation applied to a supramolecular system

The synthesis of the components of the dynamic supramolecular hydrogen-bonded catalytic system 2 + 3 is described. The catalytic performance and substrate- and enantioselectivity of Mn(salen) catalyst 2 were investigated in the presence and absence of the Zn(porphyrin) receptor unit 3. The effects of pyridine and pyridine N-oxide donor ligands were also studied. Some aspects on the mechanism of the Jacobsen-Katsuki epoxidation, based on literature observations, are introduced as a means to analyse the behaviour of 2 and its modulation by the formation of macrocycle 1 with 3. A complete association model of the metal-free system 4 + 5 refutes the earlier assumption that macrocycle 1 is the predominant form of catalyst 2 under the standard epoxidation reaction conditions with 2 + 3. Evidence are provided that receptor-binding substrates and nonbinding substrates, respectively, are epoxidised by two different catalytic species, or two distinct distributions of species in competitive epoxidations using catalytic system 2 + 3. The two species are assigned to the endo and exo faces of the Mn(salen) catalyst in macrocycle 1, and to equivalently folded oligomeric structures with monomers 2 and 3 in adjacent positions. The Royal Society of Chemistry 2006.