115204-95-0Relevant academic research and scientific papers
Development of catalysts for the Baylis-Hillman reaction: The application of tetramethylguanidine and attempts to use a supported analogue
Leadbeater,Van der Pol
, p. 2831 - 2835 (2001)
We show here that tetramethylguanidine (TMG) is a useful catalyst for the Baylis-Hillman reaction of aldehydes with methyl acrylate, showing good activity with a range of aldehyde substrates and, unlike many other catalysts or catalyst mixtures, it can be
Ni(0)-promoted hydroxycarboxylation of 1,2-dienes by reaction with CO 2 and O2
Aoki, Masao,Izumi, Sawa,Kaneko, Motomu,Ukai, Kazutoshi,Takaya, Jun,Iwasawa, Nobuharu
, p. 1251 - 1253 (2007)
Figure presented A novel method for the preparation of hydroxy carboxylic acid derivatives has been developed by O2-oxidation of π-allylnickel intermediates generated by Ni(0)-mediated coupling of 1,2-dienes with CO2.
Diastereoselective peroxidation of derivatives of Baylis–Hillman adducts
Zuckerman, Dylan S.,Woerpel
, p. 4118 - 4129 (2019)
Cyclic derivatives of Baylis–Hillman adducts were synthesized. Cobalt-catalyzed peroxidation of these cyclic lactones afforded silyl peroxides in diastereomeric ratios ranging from 91:9 to 97:3.
Latent Nucleophiles in Lewis Base Catalyzed Enantioselective N-Allylations of N-Heterocycles
Zi, You,Lange, Markus,Schultz, Constanze,Vilotijevic, Ivan
supporting information, p. 10727 - 10731 (2019/07/09)
Latent nucleophiles are compounds that are themselves not nucleophilic but can produce a strong nucleophile when activated. Such nucleophiles can expand the scope of Lewis base catalyzed reactions. As a proof of concept, we report that N-silyl pyrroles, i
Copper-Catalyzed One-Pot Borylative Aldolisation β-Fluoride Elimination for the Formal Addition of Acrylates to Carbonyl Moieties
Rasson, Corentin,Stouse, Adrien,Boreux, Arnaud,Cirriez, Virginie,Riant, Olivier
, p. 9234 - 9237 (2018/06/04)
Herein, we report the copper-catalyzed domino borylation/aldolisation of methyl 2-fluoroacrylate with carbonyl compounds followed by an elimination to give Morita–Baylis–Hillman (MBH) analogues. The optimal conditions described were shown to be compatible
2 H-Chromene-3-carboxylic Acid Synthesis via Solvent-Controlled and Rhodium(III)-Catalyzed Redox-Neutral C-H Activation/[3 + 3] Annulation Cascade
Zhou, Zhi,Bian, Mengyao,Zhao, Lixin,Gao, Hui,Huang, Junjun,Liu, Xiawen,Yu, Xiyong,Li, Xingwei,Yi, Wei
supporting information, p. 3892 - 3896 (2018/07/22)
An efficient and redox-neutral synthesis of 2H-chromene-3-carboxylic acids from N-phenoxyacetamides and methyleneoxetanones has been realized via a solvent-controlled and rhodium(III)-catalyzed C-H activation/unusual [3 + 3] annulation sequence. This tran
Pd-Catalyzed Acyl C-O Bond Activation for Selective Ring-Opening of α-Methylene-β-lactones with Amines
Malapit, Christian A.,Caldwell, Donald R.,Sassu, Nicole,Milbin, Samuel,Howell, Amy R.
supporting information, p. 1966 - 1969 (2017/04/28)
A Pd-catalyzed ring-opening of β-lactones with various types of amines (primary, secondary, and aryl) to provide β-hydroxy amides with excellent selectivity toward acyl C-O bond cleavage is reported. The utility of this protocol is demonstrated in an asym
Kinetic resolution of α-Methylene- β- Hydroxy esters catalyzed by Acyl transfer catalyst An -PIQ
Jiang, Shan-Shan,Xu, Qin-Chang,Zhu, Ming-Yu,Yu, Xingxin,Deng, Wei-Ping
, p. 3159 - 3169 (2015/03/30)
A highly efficient nonenzymatic kinetic resolution of a series of structurally diverse racemic α-methylene-β-hydroxy esters utilizing the acyl transfer catalyst An-PIQ and propionic anhydride is reported. This procedure provides recovered alcohols with extremely high ee's (up to >99%) in reasonable conversions and excellent selectivity factors (S up to 108). Several synthetically important substrates were resolved in gram-scale reactions, and highly optically pure α-methylene-β-hydroxy esters were obtained with excellent S values and good yields.
A general approach to the synthesis of β2-amino acid derivatives via highly efficient catalytic asymmetric hydrogenation of α-aminomethylacrylates
Guo, Yujuan,Shao, Guang,Li, Lanning,Wu, Wenhao,Li, Ruihong,Li, Jingjing,Song, Jian,Qiu, Liqin,Prashad, Mahavir,Kwong, Fuk Yee
experimental part, p. 1539 - 1553 (2010/08/22)
A new strategy was developed for the synthesis of a valuable class of α-aminomethylacrylates via the Baylis-Hillman reaction of different aldehydes with methyl acrylate followed by acetylation of the resulting allylic alcohols and SN2′-type amination of the allylic acetates. Asymmetric hydrogenation of these diverse olefinic precursors using rhodium(Et-Duphos) catalysts provided the corresponding β2-amino acid derivatives with excellent enantioselectivities and exceedingly high reactivities (up to >99.5% ee and S/C=10,000). The first hydrogenation of (Z)-configurated substrates was studied for the synthesis of β2-amino acid derivatives. The high influence of the substrate geometry and steric hindrance on the reactivity and enantioselectivity was also disclosed for this reaction. This protocol provides a highly practical, facile and scalable method for the preparation of optically pure β2- amino acids and their derivatives under mild reaction conditions.
Baylis-Hillman reaction promoted by a recyclable protic-ionic-liquid solvent-catalyst system: DABCO-AcOH-H2O
Song, Ying,Ke, Haihua,Wang, Nan,Wang, Limin,Zou, Gang
experimental part, p. 9086 - 9090 (2010/01/16)
A recyclable protic-ionic-liquid solvent-catalyst system, DABCO-AcOH-H2O, has been developed and used in the Baylis-Hillman reaction of aromatic aldehydes, aliphatic aldehydes, and cinnamaldehydes with acrylates and acrylonitrile, showing compa
