Electric Literature of 787618-22-8, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 787618-22-8, C30H43O2P. A document type is Patent, introducing its new discovery.
[Problem] high-yield, high-purity nitrogen-containing heterocyclic compound is obtained by a manufacturing method. General formula [a] 1: compounds represented by the n-to-BuLi lithiated, general formula 2 and: 3 is reacted with a compound represented by the general formula: nitrogen-containing heterocyclic compound represented by the compound. (X1 The S is O or; R1 And R2 The substituent; A1 – A4 N CR or respectively independently; R is H or a substituent, however, A1 – A4 N 1 or 2 of the number; m1 The integer 0 – 2; m2 Is an integer of 0 – 4; R3 – R5 Each of the independently, an alkyl group, a cycloalkyl group or an aryl group; R4 And R5 Each bonded together to form a ring)[Drawing] no (by machine translation)
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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate