332134-61-9

Upstream product

• 1008-89-5 2-phenylpyridine 
• 110-91-8 morpholine 
• 180606-17-1 2-fluoro-6-phenyl-pyridine 
• 1078-58-6 diphenylzinc 
• 332134-60-8 4-(6-bromopyridin-2-yl)morpholine 

Downstream Products

• 332132-05-5 3-(2-Phenyl-6-morpholino-pyridin-3-yl)ethynyl-3-quinuclidinol 
• 332134-62-0 2-phenyl-6-morpholino-3-iodopyridine 

Relevant academic research and scientific papers

C-H FLUORINATION OF HETEROCYCLES WITH SILVER (II) FLUORIDE

The present invention provides compositions and methods for the selective C-H fluorination of nitrogen-containing heteroarenes with AgF2, which has previously been considered too reactive for practical, selective C-H fluorination. Fluorinated heteroarenes are prevalent in numerous pharmaceuticals, agrochemicals and materials. However, the reactions used to introduce fluorine into these molecules require pre-functionalized substrates or the use of F2 gas. The present invention provides a mild and general method for the C-H fluorination of nitrogen-containing heteroarene compounds to 2-fluoro-heteroarenes with commercially available AgF2. In various embodiments, these reactions occur at ambient temperature within one hour and occur with exclusive selectivity for fluorination at the 2-position. Exemplary reaction conditions are effective for fluorinating diazine heteroarenes to form a single fluorinated isomer.

Synthesis and late-stage functionalization of complex molecules through C-H fluorination and nucleophilic aromatic substitution

We report the late-stage functionalization of multisubstituted pyridines and diazines at the position α to nitrogen. By this process, a series of functional groups and substituents bound to the ring through nitrogen, oxygen, sulfur, or carbon are installed. This functionalization is accomplished by a combination of fluorination and nucleophilic aromatic substitution of the installed fluoride. A diverse array of functionalities can be installed because of the mild reaction conditions revealed for nucleophilic aromatic substitutions (SNAr) of the 2-fluoroheteroarenes. An evaluation of the rates for substitution versus the rates for competitive processes provides a framework for planning this functionalization sequence. This process is illustrated by the modification of a series of medicinally important compounds, as well as the increase in efficiency of synthesis of several existing pharmaceuticals.

Negishi cross-coupling reactions catalyzed by an aminophosphine-based nickel system: A reliable and general applicable reaction protocol for the high-yielding synthesis of biaryls

Treatment of NMP solutions of NiCl2 with 1,1′,1″- (phosphanetriyl)tripiperidine (≈2.05 equiv), dissolved in THF, in air at 25°C forms a highly active catalytic system for the cross-coupling of a large variety of electronically activated, non-activated, deactivated, and ortho-substituted, heterocyclic, and functionalized aryl bromides and aryl chlorides with diarylzinc reagents. Very high levels of conversion and yields were obtained within 2 h at 60°C in the presence of only 0.1 mol% of catalyst (based on nickel) and thus at catalyst loadings far lower than typically reported for nickel-catalyzed versions of the Negishi reaction. Various aryl halides-which may contain trifluoromethyl groups, fluorides, or other functional groups such as acetals, ketones, ethers, esters, lactones, amides, imines, anilines, alkenes, pyridines, quinolines, and pyrimidines-were successfully converted into the corresponding biaryls. Electronic and steric variations are tolerated in both reaction partners. Experimental observations indicate that a molecular (NiI/NiIII) mechanism is operative.

Quinuclidine compounds and drugs containing the same as the active ingredient

The present invention provides an excellent squalene synthesizing enzyme inhibitor. Specifically, it provides a compound (I) represented by the following formula, a salt thereof or a hydrate of them. In which R1 represents (1) hydrogen atom or (2) hydroxyl group; HAr represents an aromatic heterocycle which may be substituted with 1 to 3 groups; Ar represents an optionally substituted aromatic ring; W represents a chain represented by (1) —CH2—CH2— which may be substituted, (2) —CH=CH— which may be substituted, (3) —C≡C—, (4) —NH—CO—, (5) —CO—NH—, (6) —NH—CH2—, (7) —CH2—NH—, (8) —CH2—CO—, (9) —CO—CH2—, (10) —NH—S(O)l—, (11) —S(O)l—NH—, (12) —CH2—S(O)— or (13) —S(O)l—CH2— (l denotes 0, 1 or 2); and X represents a chain represented by (1) a single bond, (2) an optionally substituted C1-6 alkylene chain, (3) an optionally substituted C2-6 alkenylene chain, (4) an optionally substituted C2-6 alkynylene chain, (5) a formula —Q— (wherein Q represents oxygen atom, sulfur atom, CO or N(R2) (wherein R2 represents a C1-6 alkyl group or a C1-6 alkoxy group)), (6) —NH—CO—, (7) —CO—NH—, (8) —NH—CH2—, (9) —CH2—NH—, (10) —CH2—CO—, (11) —CO—CH2—, (12) —NH—S(O)m—, (13) —S(O)m—NH—, (14) —CH2—S(O)m—, (15) —S(O)m—CH2— (wherein m denotes 0, 1 or 2) or (16) —(CH2)n—O— (wherein n denotes an integer from 1 to 6).