Abstract The asymmetric total synthesis of the fungal metabolite curvicollide C (I) is reported, relying on a synthetic strategy that exploits non‐aldol stereotriads as chiral building blocks.

Abstract The transmetalation of Grignard reagents with zirconocene dichloride under a CO atmosphere generates acyl zirconium(IV) complexes that are inaccessible with the Schwartz reagent, including those derived from secondary and tertiary alkyl and aryl Grignard reagents.

Abstract The simple method proceeds under mild and metal‐free reaction conditions in an environmentally benign solvent.

Exploiting catalytic carbonyl-olefin metathesis is an ongoing challenge in organic synthesis. Reported herein is an FeCl3 -catalyzed ring-closing carbonyl-olefin metathesis. The protocol allows access to a range of carbo-/heterocyclic alkenes with good efficiency and excellent trans diastereoselectivity. The methodology presents one of the rare examples of catalytic ring-closing carbonyl-olefin metathesis. This process is proposed to take place by FeCl3 -catalyzed oxetane formation followed by retro-ring-opening to deliver metathesis products.

Abstract Review: 48 refs.

Organic disulfanes (also named disulfides) play a vital role in chemistry and biology.1–4 In particular, unsymmetrical disulfanes are a class of important molecules with bioactivities,1–4 such as a...

Abstract The nucleophilic addition of imidazole derivatives to trifluoromethylated acetylenes was studied. Unpredictable regioselectivity of the reaction was observed to yield both β- and α-addition products. The reaction is 100% stereoselective to give the corresponding adducts as a Z -isomers only. The observed regioselectivity is discussed in terms of polarization of triple bond using experimental and calculated data.

Abstract Review: 80 refs.

We prepared a magnetically recoverable gold(I) catalyst by immobilizing an N-heterocyclic carbene–gold(I) complex on magnetite and applied it to the hydroamination of alkynes. By employing 2 mol% of the magnetite-supported gold(I) catalyst, the hydroamination of terminal alkynes proceeded smoothly to provide the corresponding imine in a fair chemical yield. Moreover, after the reaction, the magnetic gold(I) catalyst was readily recovered by use of an external magnet and could be reused up to five times.

Abstract Porous amorphous Si is prepared by solvothermal treatment of a solution of SiCl4 in anhydrous glyme to which Mg powder is added (autoclave, 100 °C, 10 d).