Synthesis of Azines in Solid State: Reactivity of Solid Hydrazine with Aldehydes and Ketones
摘要:
Highly conjugated azines were prepared by solid state grinding of solid hydrazine and carbonyl compounds such as aldehydes and ketones, using a mortar and a pestle. Complete conversion to the azine product is generally achieved at room temperature within 24 h, without using solvents or additives. The solid-state reactions afford azines as the sole products with greater than 97% yield, producing only water and carbon dioxide as waste.
as substrates to evaluate the photocatalyst-proximity dependences of candidates for tyrosinelabelling reagents. The 1-methyl-4-aryl-urazole (MAUra) structure was found to be a novel tyrosyl radical trapping agent to labeltyrosineresidues effectively under the conditions where the ruthenium photocatalyst and tyrosine were in close proximity. Using a ruthenium photocatalyst conjugated to a carbonic
REACTION PRODUCT OF HYDRAZINE DERIVATIVES AND CARBON DIOXIDE
申请人:SOGANG UNIVERSITY RESEARCH FOUNDATION
公开号:US20150094490A1
公开(公告)日:2015-04-02
The present invention relates to the synthesis of a novel compound, in which liquid hydrazine and the derivatives thereof react with excess carbon dioxide to enable the carbon dioxide to chemically bond to the hydrazine and the derivatives thereof. To this end, high-pressure carbon dioxide is used to synthesize hydrazine and the derivatives thereof to which the carbon dioxide is bonded in a pure form with no water and no by-product. Furthermore, the present invention provides a method for utilizing the above-described compounds by reacting the compounds with carbonyl compounds.
Method of preparing power of a solid carbazic acid derivative
申请人:Sogang University Research Foundation
公开号:US20140018573A1
公开(公告)日:2014-01-16
The present disclosure relates to a method of preparing powder of a solid carbazic acid derivative, which involves inducing a reaction of a liquid hydrazine derivative with carbon dioxide at a high pressure of from about 0.5 MPa to about 100 MPa. During the reaction, the pressure may range from about 0.5 MPa to about 100 MPa. In this regard, although the reaction of the carbon dioxide with the liquid hydrazine derivative occurs when the pressure is adjusted to below than about 0.5 MPa, sticky precipitates in a form of gel are gradually produced but the powder is not produced.