54808-41-2

Upstream product

• 32465-70-6 bis(3,5-di-tert-butyl-4-methoxyphenyl)methane 

Downstream Products

• 197570-78-8 1,1-dimethyl-2,2-bis(3,5-di-tert-butyl-4-methoxyphenyl)ethylene 
• 197570-73-3 [Bis-(3,5-di-tert-butyl-4-methoxy-phenyl)-methylene]-hydrazine 
• 197570-79-9 1,1-dimethyl-2,2-bis(3,5-di-tert-butyl-4-hydroxyphenyl)ethylene 
• 197570-76-6 1,3-bis(bis-(3,5-di-tert-butyl-4-hydroxyphenyl)methylene)-2,2,4,4-tetramethylcyclobutane 
• 197570-75-5 1,3-bis(bis-(3,5-di-tert-butyl-4-methoxyphenyl)methylene)-2,2,4,4-tetramethylcyclobutane 
• 197570-74-4 2,2,7,7-Tetrakis-(3,5-di-tert-butyl-4-methoxy-phenyl)-4,4,8,8-tetramethyl-1,6-dithia-dispiro[2.1.2.1]octane 
• 1245747-47-0 (2S,3R)-1-(bis(3,5-di-tert-butyl-4-methoxyphenyl)methyl)-N,3-diphenylaziridine-2-carboxamide 
• 1245747-46-9 (2R,3S)-1-(bis(3,5-di-tert-butyl-4-methoxyphenyl)methyl)-N,3-diphenylaziridine-2-carboxamide 
• 32465-70-6 bis(3,5-di-tert-butyl-4-methoxyphenyl)methane 
• 1072879-55-0 3,3',5,5'-tetra-t-butyl-4,4'-dimethoxy benzhydrylamine 

Relevant academic research and scientific papers

Multicomponent cis- and trans-Aziridinatons in the Syntheses of All Four Stereoisomers of Sphinganine

All four stereoisomers of sphinganine can be synthesized by a multicomponent aziridination of an aldehyde, an amine and an α-diazo carbonyl compound mediated by a BOROX catalyst with high asymmetric induction (≥96% ee). The threo isomers are available from ring-opening of cis-aziridines by an oxygen nucleophile with inversion at the C-3 position and the erythro-isomers are likewise available from trans-aziridines.

Attempted Synthesis of a Stable, Quintet, Tetraphenoxyl Tetraradical: Facile Rearrangement of a Substituted Bicyclobutane

The preparation of tetraphenol 3 and its attempted oxidation to tetraradical 2 are described. Tetraphenoxyl 2 was envisioned as a more stable analog of the previously reported, quintet tetraradical 1. However, EPR studies on 3 and model compounds and crystallographic characterization of the product from oxidation of 3 suggest that 2 is not a viable target. Apparently, 2 or an intermediate in the multistep oxidation path leading to it undergoes a ring closure to a bicyclobutane. The bicyclobutane, in turn, undergoes a surprisingly facile rearrangement to the analogous butadiene structure.