4785-52-8Relevant academic research and scientific papers
Synthesis of 3-Benzylphthalide Derivatives by Using a TDAE Strategy
Ibrahimi, Maroua,Khoumeri, Omar,Abderrahim, Raoudha,Terme, Thierry,Vanelle, Patrice
supporting information, p. 283 - 286 (2020/11/23)
A one-pot synthesis of new 3-benzylphthalide derivatives was developed by using a strategy based on tetrakis(dimethylamino)ethylene (TDAE). The reactions in the presence of TDAE of substituted benzyl chlorides with methyl 2-formylbenzoate or of substitute
Isomerically Pure Tetramethylrhodamine Voltage Reporters
Deal, Parker E.,Kulkarni, Rishikesh U.,Al-Abdullatif, Sarah H.,Miller, Evan W.
supporting information, p. 9085 - 9088 (2016/08/05)
We present the design, synthesis, and application of a new family of fluorescent voltage indicators based on isomerically pure tetramethylrhodamines. These new Rhodamine Voltage Reporters, or RhoVRs, use photoinduced electron transfer (PeT) as a trigger for voltage sensing, display excitation and emission profiles in the green to orange region of the visible spectrum, demonstrate high sensitivity to membrane potential changes (up to 47% ΔF/F per 100 mV), and employ a tertiary amide derived from sarcosine, which aids in membrane localization and simultaneously simplifies the synthetic route to the voltage sensors. The most sensitive of the RhoVR dyes, RhoVR 1, features a methoxy-substituted diethylaniline donor and phenylenevinylene molecular wire at the 5′-position of the rhodamine aryl ring, exhibits the highest voltage sensitivity to date for red-shifted PeT-based voltage sensors, and is compatible with simultaneous imaging alongside green fluorescent protein-based indicators. The discoveries that sarcosine-based tertiary amides in the context of molecular-wire voltage indicators prevent dye internalization and 5′-substituted voltage indicators exhibit improved voltage sensitivity should be broadly applicable to other types of PeT-based voltage-sensitive fluorophores.
Facile construction of pyrrolo[1,2-: B] isoquinolin-10(5 H)-ones via a redox-amination-aromatization-Friedel-Crafts acylation cascade reaction and discovery of novel topoisomerase inhibitors
Wu, Shanchao,Liu, Na,Dong, Guoqiang,Ma, Lin,Wang, Shengzheng,Shi, Wencai,Fang, Kun,Chen, Shuqiang,Li, Jian,Zhang, Wannian,Sheng, Chunquan,Wang, Wei
supporting information, p. 9593 - 9596 (2016/08/01)
An efficient redox-amination-aromatization-Friedel-Crafts acylation cascade process from trans-4-hydroxyproline and 2-formylbenzoic acids has been developed for the synthesis of pyrrolo[1,2-b]isoquinolin-10(5H)-ones. Compound 3h was identified as a new potent dual topoisomerase I/II inhibitor.
Enantioselective addition of arylboronic acids to methyl 2-formylbenzoates by using a ruthenium/Me-BIPAM catalyst for synthesis of chiral 3-aryl-isobenzofuranones
Yohda, Masaaki,Yamamoto, Yasunori
, p. 10874 - 10880 (2015/11/17)
Ruthenium/Me-BIPAM-catalyzed asymmetric addition of arylboronic acids to methyl 2-formylbenzoates afforded chiral 3-aryl-isobenzofuranones. [RuCl2(p-cymene)]2/Me-BIPAM and RuCl2(PPh3)3/Me-BIPAM catalyst systems tolerate a variety of functional groups and give high yields with high enantioselectivities.
A general catalytic route to isoindolinones and tetrahydroisoquinolines: Application in the synthesis of (±)-crispine A
Dhanasekaran, Sivasankaran,Bisai, Vishnumaya,Unhale, Rajshekhar A.,Suneja, Arun,Singh, Vinod K.
supporting information, p. 6068 - 6071 (2015/01/09)
An unprecedented highly efficient Lewis acid catalyzed one-pot cascade has been demonstrated as a general catalytic system for the synthesis of diversely substituted isoindolinones and tetrahydroisoquinolines. The cascade effects one C-C and two C-N bond-
Highly enantioselective synthesis of 2,3-dihydro-1 H-imidazo[2,1-a isoindol-5(9b H)-ones via catalytic asymmetric intramolecular cascade imidization-nucleophilic addition-lactamization
He, Yuwei,Cheng, Chuyu,Chen, Bin,Duan, Kun,Zhuang, Yue,Yuan, Bo,Zhang, Meisan,Zhou, Yougui,Zhou, Zihong,Su, Yu-Jun,Cao, Rihui,Qiu, Liqin
supporting information, p. 6366 - 6369 (2015/01/16)
Highly enantioselective catalytic asymmetric intramolecular cascade imidization-nucleophilic addition-lactamization of N1-alkylethane-1,2-diamine with methyl 2-formylbenzoate catalyzed by a chiral phosphoric acid represents the first efficient method for the preparation of medicinally interesting chiral 2,3-dihydro-1H-imidazo[2,1-a]isoindol-5(9bH)-ones with high yields and excellent enantioselectivities. This strategy has been shown to be quite general toward various methyl 2-formylbenzoates.
CARBAMATE COMPOUNDS AND OF MAKING AND USING SAME
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Paragraph 00393, (2013/07/19)
This disclosure provides compounds and compositions which may be modulators of MAGL and/or ABHD6 and their use as medicinal agents, processes for their preparation, and pharmaceutical compositions that include disclosed compunds as at least one active agent. The disclosure also provides for method of treating a patient in need thereof, where the patient is suffering from indications such as pain, solid tumor cancer and/or obesity comprising administering a disclosed compound or composition.
CARBAMATE COMPOUNDS AND OF MAKING AND USING SAME
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Paragraph 00446, (2013/10/08)
Provided herein are carbamate compounds which may be useful in the treatment of, for example, pain, solid tumors and/or obesity.
Asymmetric organocatalytic synthesis of trans -3,4-disubstituted isochromanones via an intramolecular aldol reaction
Fronert, Jeanne,Bisschops, Tom,Cassens-Sasse, Elisa,Atodiresei, Iuliana,Enders, Dieter
, p. 1708 - 1712 (2013/07/19)
The diastereo- and enantioselective synthesis of 3-acetyl-4- hydroxyisochroman-1-ones via an intramolecular trans-selective aldol reaction employing proline-type organocatalysts is described. Good yields (64-88%) and high stereoselectivities (87 to >95% de, 84-99% ee) are obtained, thus potentially enabling, for example, a new direct entry to carbazolelactone alkaloid natural products. Georg Thieme Verlag Stuttgart, New York.
A synthetic route to chiral C(3)-functionalized phthalides via a Ag(I)-catalyzed allylation/transesterification sequence
Mirabdolbaghi, Roya,Dudding, Travis
, p. 3287 - 3292 (2013/04/24)
A Ag(I)-catalyzed synthesis of chiral C(3)-substituted phthalides (8a-f) via a Sakurai-Hosomi allylation/transesterification reaction is described (ee ≤86%). A notable feature of this reaction is that it utilizes ortho-substituted aldehydes, which are a class of compounds that generally afford poor levels of stereoinduction when applying most known catalytic asymmetric allylation approaches. It was also found that elongation of the n-alkyl chain length (R1, up to n=6; R2=H) of the starting alkyl 2-formylbenzoates (7g-i) improved the enantiomeric excess (ee) of the product.
