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Relevant academic research and scientific papers

Molecular tectonics: Chiral 1- and 2-D zinc coordination networks based on chiral porphyrins bearing pyridyl and ethynylpyridyl appended units

Two chiral porphyrin based ligands bearing, at their opposite meso positions, two appended pyridyl or ethynylpyridyl units and chiral groups have been designed. For each ligand, both enantiomers were synthesised. In the presence of the Zn(ii) cation, the

Exploiting ancillary ligation to enable nickel-catalyzed c-o cross-couplings of aryl electrophiles with aliphatic alcohols

The use of (L)Ni(o-tolyl)Cl precatalysts (L = PAd-DalPhos or CyPAd-DalPhos) enables the C(sp2)-O cross-coupling of primary, secondary, or tertiary aliphatic alcohols with (hetero)aryl electrophiles, including unprecedented examples of such nickel-catalyzed transformations employing (hetero)aryl chlorides, sulfonates, and pivalates. In addition to offering a competitive alternative to palladium catalysis, this work establishes the feasibility of utilizing ancillary ligation as a complementary means of promoting challenging nickel-catalyzed C(sp2)-O cross-couplings, without recourse to precious-metal photoredox catalytic methods.

DIAMINOGUANIDINE DERIVATIVES AND APPLICATION THEREOF IN PREPARATION OF ANIMAL GROWTH PROMOTERS USED IN FEED

Diaminoguanidine derivatives in preparation of animal growth promoters used in feed. The diaminoguanidine derivatives have a structural formula as shown in formula (I), wherein R1 is methyl, ethyl, isopropyl, n-butyl, n-propyl, n-pentyl, n-octyl, n-tetradecyl, sec-butyl, 3-pentyl, cyclopentyl or benzyl. The diaminoguanidine compounds significantly improve the productivity of ducks if they are fed with the diaminoguanidine compounds. Productivity of pigs or chickens is also improved with such diaminoguanidine compounds.