257938-99-1Relevant academic research and scientific papers
Palladium-Catalyzed Carbonylation of (Hetero)Aryl, Alkenyl and Allyl Halides by Means of N-Hydroxysuccinimidyl Formate as CO Surrogate
Barré, Ana?s,T?nta?, Mihaela-Liliana,Alix, Florent,Gembus, Vincent,Papamica?l, Cyril,Levacher, Vincent
, p. 6537 - 6544 (2015/10/05)
An efficient Pd-catalyzed carbonylation protocol is described for the coupling of a large panel of aryl, heteroaryl, benzyl, vinyl and allyl halides 2 with the unusual N-hydroxysuccinimidyl (NHS) formate 1 as a CO surrogate to afford the corresponding valuable NHS esters 3. High conversion to the coupling products was achieved with up to 98% yield by means of Pd(OAc)2/Xantphos catalyst system.
Preparation of deuterated methyl and dimethyl substituted nicotinoylating agents for derivatization of the N-terminal of protein.
Tsumoto, Hiroki,Murata, Chie,Miyata, Naoki,Taguchi, Ryo,Kohda, Kohfuku
, p. 1399 - 1401 (2007/10/03)
Methyl groups of 6-methylnicotinic acid and 2,6-dimethylnicotinic acid were deuterated by an H-D exchange reaction under conditions of 1% NaOD/D(2)O on heating. With a condensation reaction between the D-labeled nicotinic acid derivative and N-hydroxysuccinimide with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride, the nicotinoylating agents, 1-(6-methyl[D(3)]nicotinoyloxy)succinimide (2c) and 1-(2,6-dimethyl[D(6)]nicotinoyloxy)succinimide (2f) were prepared. Both D-labeled nicotinoylating agents and their unlabeled counterparts quantitatively modified the N-terminal of protein.
