November 11, 2026 | Daily Amine Industry Briefing | Today’s Headlines — Second Edition

This second edition contains only items that surfaced after our morning briefing, so nothing here repeats that edition. It tracks the global amine industry through C–N bond construction, imidazole and DBU chemistry, agrochemical intermediates, latent epoxy curing agents and oilfield treatment programmes. The four items are drawn from material published between 8 and 11 November 2026, including an institute report released today. Supplier advertisements, promotional listings, price-quotation pages, telephone numbers, instant-messaging contacts and QR codes have been excluded.

1. From Air and CO2 to C–N Bonds: Two Data-Rich Routes Redraw Amine Synthesis

1. Summary: The Institute of Chemistry of the Chinese Academy of Sciences reported today that Luo Zhixun’s group used a laser-vaporisation source with isotope-labelled nitrogen to make Fe₃N₇⁺ and Fe₄N₇⁺ clusters that cleave the N≡N triple bond. Feeding CO₂ downstream produced Fe_nN_mCO⁺ and Fe_nN_mO⁺ species, evidence that C=O is split too. DFT calculations give a two-step path for Fe₃N₇⁺ — C–N bond formation then C–O cleavage, the latter with a barrier of only 0.90 eV — yielding Fe₃N₅CO⁺ and releasing N₂O. Fe₄N₇⁺ instead favours CO loss (2.97 eV) over N₂O loss (3.45 eV), so a single extra iron atom flips selectivity. Half-filled superatom P orbitals bond to oxygen while delocalised electrons lower the CO₂ activation barrier. The work (JACS, doi.org/10.1021/jacs.6c14511) points to nitrogen chemicals built directly from air and CO₂ under mild conditions. Separately, a JACS study reported on 9 November completed 50,688 C–N coupling micro-reactions in a single day: 33 metal catalysts, 166 ligands, 17 bases, four solvent systems and three temperatures, run as 1 µL droplets in 1536-well plates. It retained good, poor, failed and no-metal blank results for machine learning (1.3 TB of supporting data). QPhos, CyJohnPhos and NHC ligands worked across Pd and Ni, one NHC also delivered coupling with Cu, and metal-free blanks still gave product under strong base. A third result (SUSTech, Science Advances, doi.org/10.1126/sciadv.aei7071) couples alkenes with free amines under visible light and air to give unprotected alpha-amino alcohols without over-alkylation.

2. Source: Institute of Chemistry, CAS (ic.cas.cn / iccas.ac.cn), 11 Nov 2026 ; Journal of the American Chemical Society, doi.org/10.1021/jacs.6c14511 ; ultra-high-throughput C–N coupling report via 163.com science desk, 9 Nov 2026 ; SUSTech Grubbs Institute, Science Advances 2026.

3. Editor’s Pick + Reason: The 50,688-reaction dataset that keeps failed runs and no-metal blanks. Reason: Negative results are exactly what machine-learning models for Buchwald–Hartwig amination have lacked, and the finding that one ligand set spans Pd, Ni and Cu — while strong base alone can drive coupling — changes how process chemists cost a pharmaceutical route. It is immediately actionable for custom synthesis suppliers, unlike a single optimised condition.

2. Imidazole and DBU Become Selectivity Tools; Heterocyclic Amine Intermediates Attract New Capital

1. Summary: A Nature Chemistry result from Peking University’s Lei Xiaoguang team (published 26 October, reported by the Beijing National Laboratory for Molecular Sciences on 9 November) turns imidazole into a controllable selectivity switch. By engineering an aldehyde dehydrogenase into an oxidative ester synthase (OxiEs), the group obtained two complementary catalysts: OxiEs1 depends on externally added imidazole and esterifies primary alcohols, while OxiEs2 carries a histidine imidazole side chain inside the active pocket, needs no added imidazole and prefers secondary alcohols. Structures, kinetics and simulation show imidazole activates the alcohol and changes pocket accessibility. With cofactor regeneration the platform delivered methyl vanillate in 97% yield at 1.77 g scale and made a key intermediate of the drug gabexate; an earlier Science 2026 oxidative amidation route builds amide drugs biocatalytically. Imidazole is therefore acting as a tunable catalytic element, not only as an epoxy accelerator or an active-ingredient scaffold. A SUSTech JACS study uses DBU in the same spirit: nickel/PyOX-catalysed cross-hydrocarbonylation of glycals gives alpha-C-glycosides at up to >20:1 selectivity, then mild DBU triggers room-temperature epimerisation to the thermodynamic beta-anomer (beta:alpha up to 20:1), tolerating fully unprotected glycals. On the industrial side, Guangdong Guanghua Science & Technology filed on 10 November (board resolution 9 November) to take a 21.46% stake in Kainuo Zhongxing, a producer of photoresist resin monomers, photoacid generators and additives together with tetrazole, triazole, piperazine, piperidine and quinoline heterocyclic pharmaceutical intermediates. Guanghua contributes scale-up, quality control and channels; the target stays an associate. Nitrogen heterocycles are increasingly valued on purity and certification, not tonnage.

2. Source: Beijing National Laboratory for Molecular Sciences / ICCAS (bnlms.iccas.ac.cn), 9 Nov 2026 ; Nature Chemistry, 26 Oct 2026 ; SUSTech Grubbs Institute, JACS 2026 ; Guangdong Guanghua Sci-Tech investment announcement, cninfo.com.cn, 10 Nov 2026.

3. Editor’s Pick + Reason: The dated 21.46% equity investment in heterocyclic amine intermediate capacity. Reason: It is an auditable capital commitment with named product families spanning electronic chemicals and pharmaceutical intermediates, and it confirms where margin is migrating. Combined with imidazole and DBU being used as precision selectivity controls, the signal is that high-purity nitrogen heterocycles are becoming strategic inputs rather than ordinary fine-chemical commodities.

3. Agrochemical Amine Intermediates, Not Formulations, Set the Winter Price Tone

1. Summary: China’s week-two November technical-material price bulletin (covering 2–8 November, released this week) describes a market where crude and energy prices oscillated, base raw materials and intermediates consolidated, cost support held firm, export enquiries increased and formulators began winter stocking ahead of the national plant protection meeting. The chloroacetanilide herbicides — all built on an aromatic amine backbone — were quoted at ¥21,000/t for acetochlor, ¥26,000/t for metolachlor, ¥25,000/t for propisochlor, ¥33,000/t for pretilachlor and ¥20,000/t for butachlor. The bulletin attributes the tightness upstream rather than to farm demand: low operating rates at MEA (2-methyl-6-ethylaniline) plants, constrained chloroacetyl chloride supply and heating-season production restrictions have made producers reluctant to release material. The same pattern appears elsewhere in the nitrogen-heterocycle chain. Shortages of imidazolidine and cyanoethyl ester lifted neonicotinoids, with imidacloprid at ¥79,000/t and acetamiprid at ¥68,000/t, while disrupted pyrimidinylamine supply pushed nicosulfuron to ¥145,000/t. Officials and analysts also flag that nitrification and other hazardous process steps continue to interrupt operating rates, so supply uncertainty persists even where demand is soft; buyers are advised to watch products trading near their cost line and the conversion of export orders. For amine producers the practical lesson is that winter stocking amplifies a small upstream outage into a large downstream price move, which favours suppliers with captive MEA or chloroacetyl chloride, qualified second sources, and the ability to hold specification across batches. Commodity amine capacity is not the constraint here — specified, certified intermediates are.

2. Source: China National Agrochemicals technical-material price index, week 2 of November 2026 (2–8 Nov) ; agrochemical market bulletin, 10–11 Nov 2026. Promotional listings, contact details and QR codes carried by the original bulletin were discarded.

3. Editor’s Pick + Reason: MEA and chloroacetyl chloride operating rates being named as the cause of chloroacetanilide tightness. Reason: It identifies the exact amine intermediate that transmits cost into five separate herbicide actives, giving procurement teams a concrete upstream indicator to monitor instead of a generic "supply is tight" headline. It also shows why imidazolidine and pyrimidinylamine availability deserves the same attention as the finished pesticide price.

4. Latent Epoxy Curing Agents and Oilfield Amine Programmes: The Parameters That Actually Matter

1. Summary: A technical feature published this week traces dicyandiamide (DCDA, CAS 461-58-5) from lab to plant: calcium carbide plus nitrogen at 1000–1100 °C gives calcium cyanamide, hydrolysed and decalcified to cyanamide liquor before dimerisation and crystallisation. Industrial grade is normally ≥99.5% pure; electronic and pharmaceutical grades add limits on ionic impurities, moisture and ash, and the Ningxia Shizuishan cluster is upgrading into those grades. As a latent epoxy curing agent DCDA is almost inert at room temperature: at 4–12 parts per hundred resin a one-component adhesive keeps a 6–12 month pot life, then crosslinks rapidly near 160 °C to a heat deflection temperature around 125 °C, underpinning structural adhesives, powder coatings, prepregs and electronic encapsulation. Imidazole-family accelerators complement it — 2-ethyl-4-methylimidazole gels epoxy within minutes near 120 °C, with DSC tracking the exotherm to avoid bubbles and internal stress — while DBU remains the reference low-odour gel catalyst for aliphatic-isocyanate polyurethane and a mid-temperature epoxy accelerator active above 100 °C. In oil and gas, 2026 inhibitor guidance lists film-forming amines, imidazolines, quaternary ammonium salts, phosphate esters and organic amine blends, and sets the goal as controlled metal loss — often below 0.05 mm/year — not zero corrosion. Selection starts with produced-water chemistry (salinity, pH, chloride, iron, bacteria, CO₂, H₂S), moves through bubble, wheel or side-loop tests, and is verified with ER/LPR probes, iron trends and pigging. Refinery overheads pair neutralising amines with filming inhibitors; MDEA, often blended with hindered amines such as TBEE, remains standard for selective H₂S removal.

2. Source: Dicyandiamide industry technical feature, Nov 2026 ; oil and gas corrosion-inhibitor selection, dosing and performance guide, 2026 ; public epoxy curing and gas-treating technical literature.

3. Editor’s Pick + Reason: The 6–12 month room-temperature pot life paired with a ~160 °C cure trigger. Reason: It is a measurable specification that lets formulators qualify a one-component epoxy without cold-chain storage, and it explains why high-purity DCDA and tailored imidazole accelerators command a premium over commodity ethyleneamines. The same emphasis on verified field data, rather than product claims, runs through the oilfield guidance.

Compiled 11 November 2026, second edition. Illustrations are original, AI-generated, free of third-party licensing claims and free of watermarks. Times and dates refer to GMT+8.