65133-99-5

Upstream product

• 6210-82-8 diethyl S-(+)-2-methyl-1-butyl malonate 
• 14371-10-9 (E)-3-phenylpropenal 
• 1730-89-8 (S)-4-methylhexanoic acid 
• 534-00-9 (S)-2-methylbutyl bromide 
• 6860-46-4 (4S)-4-methylhexanoyl chloride 
• 6839-54-9 (S)-(+)-4-Methyl-1-phenyl-1-hexanon 

Downstream Products

• 78976-20-2 (S)-(+)-1-(4-Methylhexyl)-4-nitrobenzol 
• 78976-18-8 (S)-(+)-1-(4-Methylhexyl)-2-nitrobenzol 
• 78976-07-5 trans-(S,S)-(-)-2,2'-Bis(4-methylhexyl)azobenzol 
• 78976-06-4 cis-(S,S)-(-)-2,2'-Bis(4-methylhexyl)azobenzol 
• 78976-09-7 trans-(S,S)-(+)-4,4'-Bis(4-methylhexyl)azobenzol 
• 78976-08-6 cis-(S,S)-(+)-4,4'-Bis(4-methylhexyl)azobenzol 

Relevant academic research and scientific papers

Asymmetric Traceless Petasis Borono-Mannich Reactions of Enals: Reductive Transposition of Allylic Diazenes

The traceless Petasis borono-Mannich reaction of enals, sulfonylhydrazines, and allylboronates, catalyzed by chiral biphenols, results in an asymmetric reductive transposition of the in situ generated allylic diazene. Acyclic 1,4-diene products bearing either alkyl- or aryl-substituted benzylic stereocenters are afforded in excellent yields and enantiomeric ratios of up to 99:1. The use of crotylboronates in the reaction results in concomitant formation of two stereocenters in either a 1,4-syn or anti relationship from the corresponding E- or Z-crotylboronate used in the reaction. The use of β-monosubstituted enals in the asymmetric traceless Petasis borono-Mannich reaction of crotylboronates installs tertiary methyl-bearing stereocenters in good yields and high enantioselectivities.

Synthese chiraler Azobenzole und Untersuchung der in nematischen Fluessigkristallen durch sie induzierten cholesterischen Phasen

The chiral cis- and trans-azo compounds 8a - d and 9a - d with para- or ortho-standing chiral side chains as well as the trans-azoxy derivatives 17a - d and 18a - d are synthesized.The influence of the molecular structure and the distance of the chiral centre from the aromatic nucleus on screw sense and pitch of induced cholesteric phases is investigated.The cis-azo compounds 9c and d show atropisomerism.