19793-96-5Relevant academic research and scientific papers
N-benzyl-3-benzylideneisoindolin-1-one
Khan, M. Wahab,Guha, Subhadra,Mukherjee, Alok K.,Kundu, Nitya G.
, p. 119 - 120 (1998)
The title compound, C22H17NO, is formed by the palladium-catalyzed reaction between N-benzyl-o-iodotenzamide and phenylacetylene. The molecules contain three planar parts, namely the isoindolinone moiety (A) and the phenyl rings of t
Direct Difluorination-Hydroxylation, Trifluorination, and C(sp2)-H Fluorination of Enamides
Munoz, Socrates B.,Krishnamurti, Vinayak,Barrio, Pablo,Mathew, Thomas,Prakash, G. K. Surya
, p. 1042 - 1045 (2018/02/23)
A direct double functionalization involving both difluorination and hydroxylation of enamides is reported. With the appropriate combination of an electrophilic fluorinating reagent and H2O, the most convenient and ecofriendly hydroxylating agent, the preparation of 3-(difluoroalkyl)-3-hydroxyisoindolin-1-ones was achieved under basic or Br?nsted acidic conditions. Suitable conditions for trifluorination as well as C(sp2)-H fluorination were also identified. Subsequent asymmetric functionalization of the obtained gem-difluorinated products has also been demonstrated.
Synthesis of 2-(1,2,3-Triazolyl)benzamide Derivatives by a Copper(I)-Catalyzed Multicomponent Reaction
Hayeebueraheng, Abdulhakim,Kaewmee, Benyapa,Rukachaisirikul, Vatcharin,Kaeobamrung, Juthanat
, p. 6714 - 6721 (2017/12/07)
The copper-catalyzed multicomponent reaction of 2-iodobenzamides, NaN3, and terminal alkynes for the synthesis of 2-(1,2,3-triazolyl)benzamide derivatives was achieved in a one-step process over a short period of time under mild conditions. The transformation involved a C(aryl)–N bond formation process followed by an azide–alkyne cycloadditon reaction. The absence of external base was crucial for the preferred reaction pathway to occur.
Preparation method of 3-methylene isoindole-1-one derivatives
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Paragraph 0150; 0151; 0152; 0153; 0154; 0155; 0156; 0157, (2017/07/20)
The invention relates to a preparation method of 3-methylene isoindole-1-one derivatives. The preparation method comprises the following steps: an N-substituted 2-chlorobenzamide derivative in formula (1), alkyne-terminated compounds in formula (2) and ni
Synthesis of 3-substituted isoindolin-1-ones via a tandem desilylation, cross-coupling, hydroamidation sequence under aqueous phase-transfer conditions
Munoz, Socrates B.,Aloia, Alexandra N.,Moore, Alexander K.,Papp, Attila,Mathew, Thomas,Fustero, Santos,Olah, George A.,Surya Prakash
supporting information, p. 85 - 92 (2015/12/30)
A simple and expedient method for the synthesis of 3-methylene-isoindolin-1-ones 4 under aqueous phase-transfer conditions has been developed. Starting from 2-iodobenzamides 1 and (silyl)alkynes, the products are obtained in high yields and short reaction times (30 min) with the use of inexpensive CuCl/PPh3 catalyst system in the presence of n-Bu4NBr (TBAB) as a phase-transfer agent. Terminal alkynes are conveniently "unmasked" upon in situ desilylation under the reaction conditions. Alkynes possessing heterocyclic moieties were also found as amenable substrates. Furthermore, a one-pot process starting from 2-iodobenzamides 1, aryl halides (bromides or iodides) and trimethylsilylacetylene (TMSA) as a convenient acetylene surrogate was also shown to be feasible under Pd/Cu catalysis.
Copper(II)-catalyzed tandem synthesis of substituted 3-methyleneisoindolin- 1-ones
Pan, Jie,Xu, Zhen,Zeng, Runsheng,Zou, Jianping
supporting information, p. 1022 - 1026 (2013/09/02)
An efficient strategy for the synthesis of a variety of 3-methyleneisoindolin-1-ones has been developed. The reaction proceeded from coupling of 2-iodobenzamides (or 2-bromobenzamides) and terminal alkynes via Cu(OAc)2·H2O/2,2′-biimi
Efficient Synthesis of a (Z)-3-Methyleneisoindolin-1-one Library Using Cu(OAc)2·H2O/DBU under Microwave Irradiation
Zhang, Li,Zhang, Yongliang,Wang, Xin,Shen, Jingkang
, p. 654 - 665 (2013/03/14)
Microwave-promoted efficient synthesis of a (Z)-3-methyleneisoindolin-1-one library from 2-bromobenzamides and terminal alkynes using Cu(OAc) 2·H2O/DBU is described. Various benzamide substituents, ring substitutions, including heter
Synergistic effect of palladium and copper catalysts: Catalytic cyclizative dimerization of ortho-(1-alkynyl)benzamides leading to axially chiral 1,3-butadienes
Yao, Bo,Jaccoud, Carole,Wang, Qian,Zhu, Jieping
supporting information; experimental part, p. 5864 - 5868 (2012/06/15)
Two is better than one: In the presence of Pd(OAc)2 and Cu(OAc)2, o-(1-alkynyl)benzamides 1 were converted into bis-iminobenzoisofurans with an axially chiral 1,3-diene 2 unit. The coexistence of both Pd and Cu catalysts was found to be essential for both the cyclizative dimerization process and for the observed unusual cyclization mode. Copyright
Microwave assisted copper-free Sonogashira coupling/5-exo-dig cycloisomerization domino reaction: Access to 3-(phenylmethylene)isoindolin-1- ones and related heterocycles
Hellal, Malik,Cuny, Gregory D.
, p. 5508 - 5511 (2011/10/31)
An efficient microwave assisted one-pot synthesis of substituted 3-(phenylmethylene)isoindolin-1-ones is reported via a copper-free Sonogashira coupling and a regioselective 5-exo-dig cycloisomerization. This domino reaction was also extended to other related heterocycles.
Metal-free tandem reaction in water: An efficient and regioselective synthesis of 3-hydroxyisoindolin-1-ones
Zhou, Yu,Zhai, Yun,Li, Jian,Ye, Deju,Jiang, Hualiang,Liu, Hong
supporting information; experimental part, p. 1397 - 1404 (2010/09/16)
A mild and effective method was developed for the construction of heterocyclic building blocks 3-hydroxyisoindolin-1-ones via a metal-free tandem transformation with excellent regioselectivity. Significantly, the strategy presents an atom-economical and environmentally friendly transformation, in which two new C-N bonds and one C-O bond are formed in water from two simple starting materials. Moreover, a broad spectrum of substrates can participate in the process effectively to produce the desired products in good yields.
