Hypervalent Iodine-Mediated Intramolecular <i>trans</i>-Amino­car­box­ylation and Oxoamino­carbox­ylation of Alkynes: Divergent Cascade Annulations of Isocoumarins under Metal-Free Conditions

An exclusive <i>trans</i>-aminocarboxylation and oxoaminocarboxylation of diarylalkynes were realized through hypervalent iodine-mediated cascade annulations under metal-free conditions, leading to divergent assembly of fused or spiro polycyclic heterocycles with a dosage of the hypervalent iodine oxidant. The mechanisms for the formation of both products are proposed

Direct Oxidative Coupling of Enamines and Electron-Deficient Amines: TBAI/TBHP-Mediated Synthesis of Substituted Diaminoalkenes under Metal-Free Conditions

A metal-free cross-coupling of enamines and electron-deficient amines through oxidative C­(sp²)–N bond formation has been realized by using TBAI as catalyst and TBHP as oxidant. This novel strategy allows for an efficient organocatalytic synthesis of the synthetically useful diaminoalkene derivatives and is highlighted by appealing features such as readily available of the starting materials, wide substrate scope and transition-metal-free characteristics

Variance analysis of the effects of block, Al, P, and clone on enzyme activities in roots.

<p>Variance analysis of the effects of block, Al, P, and clone on enzyme activities in roots.</p

Variance analysis of the effects of block, Al, P, and clone on Al-induced secretion of organic acids from roots.

<p>Variance analysis of the effects of block, Al, P, and clone on Al-induced secretion of organic acids from roots.</p

Variance analysis of the effects of block, Al, P, and clone on the root, stem, and leaf DWs, and root/shoot DW ratio of seedlings.

<p>Variance analysis of the effects of block, Al, P, and clone on the root, stem, and leaf DWs, and root/shoot DW ratio of seedlings.</p

The randomized block design of different Al-P-clone treatments.

<p>The randomized block design of different Al-P-clone treatments.</p

Phosphorus application reduces aluminum toxicity in two <i>Eucalyptus</i> clones by increasing its accumulation in roots and decreasing its content in leaves - Fig 5

<p><b>Root enzyme activities in DH32-29 (A, C, E, G, I, K) and G9 (B, D, F, H, J, L) seedlings treated with different levels of Al and P.</b> Bars represent means ± standard deviations (n = 3). Differences among the six treatments were analyzed using 2 (Al) × 3 (P) analysis of variance. Different letters above the bars indicate a significant difference at <i>P</i> < 0.05.</p

Additional file 1 of Comparative analysis of chloroplast genomes of Pulsatilla species reveals evolutionary and taxonomic status of newly discovered endangered species Pulsatilla saxatilis

Supplementary Material