Search Results - "Ma Dawei"

Extended-State-Observer-Based Output Feedback Nonlinear Robust Control of Hydraulic Systems With Backstepping by Yao, Jianyong, Jiao, Zongxia, Ma, Dawei

“…In this paper, an output feedback nonlinear control is proposed for a hydraulic system with mismatched modeling uncertainties in which an extended state…”
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Intramolecular Dearomative Oxidative Coupling of Indoles: A Unified Strategy for the Total Synthesis of Indoline Alkaloids by Zi, Weiwei, Zuo, Zhiwei, Ma, Dawei

“…Conspectus Indole alkaloids, one of the largest classes of alkaloids, serve as an important and rich source of pharmaceuticals and have inspired synthetic…”
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Palladium-Catalyzed Direct Functionalization of 2-Aminobutanoic Acid Derivatives: Application of a Convenient and Versatile Auxiliary by Fan, Mengyang, Ma, Dawei

“…New group on the block: 2‐Methoxyiminoacetyl is a readily available auxiliary for promoting palladium‐catalyzed γ arylation of C(sp3)H bonds. This auxiliary…”
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Adaptive Robust Control of DC Motors With Extended State Observer by Yao, Jianyong, Jiao, Zongxia, Ma, Dawei

“…Structured and unstructured uncertainties always exist in physical servo systems and degrade their tracking accuracy. In this paper, a practical method named…”
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A Unified Approach for the Assembly of Atisine‐ and Hetidine‐type Diterpenoid Alkaloids: Total Syntheses of Azitine and the Proposed Structure of Navirine C by Liu, Jie, Ma, Dawei

“…A tetracyclic dinitrile was synthesized in twelve steps from cyclohex‐2‐en‐1‐one by using a chelation‐triggered conjugate addition to a γ‐hydroxy‐substituted…”
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High-Accuracy Tracking Control of Hydraulic Rotary Actuators With Modeling Uncertainties by Yao, Jianyong, Jiao, Zongxia, Ma, Dawei, Yan, Liang

“…Structured and unstructured uncertainties are the main obstacles in the development of advanced controllers for high-accuracy tracking control of hydraulic…”
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Oxalic Diamides and tert-Butoxide: Two Types of Ligands Enabling Practical Access to Alkyl Aryl Ethers via Cu-Catalyzed Coupling Reaction by Chen, Zhixiang, Jiang, Yongwen, Zhang, Li, Guo, Yinlong, Ma, Dawei

“…A robust and practical protocol for preparing alkyl aryl ethers has been developed, which relies on using two types of ligands to promote Cu-catalyzed…”
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Asymmetric, Protecting-Group-Free Total Synthesis of (-)-Englerin A by Zhou, Qianghui, Chen, Xiaofei, Ma, Dawei

“…The golden touch: Total synthesis of natural (−)‐englerin A from (R)‐citronellal has been achieved using a gold‐catalyzed cyclization as the key step (see…”
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CuI/Oxalamide Catalyzed Couplings of (Hetero)aryl Chlorides and Phenols for Diaryl Ether Formation by Fan, Mengyang, Zhou, Wei, Jiang, Yongwen, Ma, Dawei

“…Couplings between (hetero)aryl chlorides and phenols can be effectively promoted by CuI in combination with an N‐aryl‐N′‐alkyl‐substituted oxalamide ligand to…”
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Assembly of Primary (Hetero)Arylamines via CuI/Oxalic Diamide-Catalyzed Coupling of Aryl Chlorides and Ammonia by Fan, Mengyang, Zhou, Wei, Jiang, Yongwen, Ma, Dawei

“…A general and practical catalytic system for aryl amination of aryl chlorides with aqueous or gaseous ammonia has been developed, with CuI as the catalyst and…”
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Rhodium-Catalyzed Regioselective C7-Functionalization of N-Pivaloylindoles by Xu, Lanting, Zhang, Chao, He, Yupeng, Tan, Lushi, Ma, Dawei

“…An efficient rhodium‐catalyzed method for direct CH functionalization at the C7 position of a wide range of indoles has been developed. Good to excellent…”
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A Practical Nonlinear Adaptive Control of Hydraulic Servomechanisms With Periodic-Like Disturbances by Yao, Jianyong, Jiao, Zongxia, Ma, Dawei

“…When performing periodic tasks, the modeling uncertainties will also present some periodicity. In this paper, by appropriately applying Fourier series…”
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The MYB182 Protein Down-Regulates Proanthocyanidin and Anthocyanin Biosynthesis in Poplar by Repressing Both Structural and Regulatory Flavonoid Genes by Yoshida, Kazuko, Ma, Dawei, Constabel, C. Peter

“…Trees in the genusPopulus(poplar) contain phenolic secondary metabolites including the proanthocyanidins (PAs), which help to adapt these widespread trees to…”
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Two R2R3‐MYB proteins are broad repressors of flavonoid and phenylpropanoid metabolism in poplar by Ma, Dawei, Reichelt, Michael, Yoshida, Kazuko, Gershenzon, Jonathan, Constabel, C. Peter

“…Summary The phenylpropanoid pathway leads to the production of many important plant secondary metabolites including lignin, chlorogenic acids, flavonoids, and…”
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Recent advances in the synthesis of ent -kaurane diterpenoids by Zhao, Xiangbo, Cacherat, Bastien, Hu, Qifei, Ma, Dawei

“…Covering: 2015 to 2020The -kaurane diterpenoids are integral parts of tetracyclic natural products that are widely distributed in terrestrial plants. These…”
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A Scalable Total Synthesis of the Antitumor Agents Et‐743 and Lurbinectedin by He, Weiming, Zhang, Zhigao, Ma, Dawei

“…An efficient and scalable approach is described for the total synthesis of the marine natural product Et‐743 and its derivative lubinectedin, which are…”
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CuI/Oxalic Diamide Catalyzed Coupling Reaction of (Hetero)Aryl Chlorides and Amines by Zhou, Wei, Fan, Mengyang, Yin, Junli, Jiang, Yongwen, Ma, Dawei

“…A class of oxalic diamides are found to be effective ligands for promoting CuI-catalyzed aryl amination with less reactive (hetero)­aryl chlorides. The…”
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Assembly of Substituted Phenothiazines by a Sequentially Controlled CuI/ L-Proline-Catalyzed Cascade C----S and C----N Bond Formation by Ma, Dawei, Geng, Qian, Zhang, Hui, Jiang, Yongwen

“…In the pro‐line of fire: A general and efficient cascade reaction approach to substituted phenothiazines, which relies on controlled sequential…”
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RISE-Based Precision Motion Control of DC Motors With Continuous Friction Compensation by Yao, Jianyong, Jiao, Zongxia, Ma, Dawei

“…Continuous friction compensation along with other modeling uncertainties is concerned in this paper, to result in a continuous control input, which is more…”
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Thiourea‐Catalyzed Asymmetric Michael Addition of Carbazolones to 2‐Chloroacrylonitrile: Total Synthesis of 5,22‐Dioxokopsane, Kopsinidine C, and Demethoxycarbonylkopsin by Ni, Dongshun, Wei, Yi, Ma, Dawei

“…A modified Takemoto catalyst enabled the asymmetric Michael addition of carbazolones to 2‐chloroacrylonitrile to afford 3,3‐disubstituted carbazolones with…”
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