51-80-9Relevant articles and documents
Weingarten,Miles
, p. 668,669 (1968)
Hancock,Dickinson
, p. 783 (1973)
Method for preparing kakonein derivatives
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Paragraph 0025-0026, (2017/03/17)
The invention discloses a puerarin derivative preparation method. Puerarin derivative has the structural formula as shown in the specification, and the puerarin derivative is obtained by that puerarin reacts with CH2(R)2, wherein R is a tertiary amine gene. The puerarin derivative preparation method is characterized in that reaction is carried out under hydrochloric acid catalysis. Compared with the prior art, the puerarin derivative preparation method is characterized in that the yield of a puerarin derivative product can be obviously improved after the class of reaction adopts hydrochloric acid catalysis.
Reactions of zirconium amide amidinates with dioxygen. Observation of an unusual peroxo intermediate in the formation of oxo compounds
Lamb, Adam C.,Lu, Zheng,Xue, Zi-Ling
supporting information, p. 10517 - 10520 (2014/12/10)
Reaction of d0 Zr(NMe2)2[MeC(N iPr)2]2 (1) with O2 at -30°C gives three Zr containing products: a peroxo trimer {(μ-η2: η2-O2)Zr[MeC(NiPr)2] 2}3 (2), an oxo dimer {(μ-O)Zr[MeC(N iPr)2]2}2 (3), and an oxo polymer {(μ-O)Zr[MeC(NiPr)2]2}n (4). 2 is a rarely observed peroxo complex from the reaction of a d0 complex with O2. This journal is the Partner Organisations 2014.