Palladium‐Catalyzed Annulation of Arylbenzamides with Diaryliodonium Salts
作者:Cheng Pan、Limin Wang、Jianwei Han
DOI:10.1002/adsc.202100860
日期:2022.1.18
By using diaryliodoniumsalts, a cylization has been accomplished in the synthesis of N-aryl phenanthridinone derivatives via a cascade of ortho-arylation and Csp2-N bond formation in the presence of palladium catalyst. The reaction exhibits a broad compatibility of readily available N-arylnaphthamides.
Intramolecular Dehydrogenative Photocyclization of N-Phenyl-1-naphthamides
作者:Hao-Yuan Li、Xiaoying Niu、Shan-Shan Zhang、Shigang Shen、Qing-Yuan Meng、Xiu-Long Yang
DOI:10.1021/acs.orglett.4c01805
日期:2024.6.28
Here, we explore a dehydrogenative 6π photocyclization method for N-substituted naphthalene carboxamides, which can be conducted in air. This method employs DMSO as both the reaction solvent and oxidant while also stabilizing the excited state of the substrate. Furthermore, the addition of photosensitizer enables the reaction to proceed under a 440–445 nm LED source via energy transfer. The proposed
在这里,我们探索了一种N-取代萘甲酰胺的脱氢6π光环化方法,该方法可以在空气中进行。该方法采用DMSO作为反应溶剂和氧化剂,同时稳定底物的激发态。此外,光敏剂的添加使反应能够在 440-445 nm LED 光源下通过能量转移进行。所提出的机制最初通过 DFT 计算得到验证。
Angiotensin-Converting Enzyme Inhibitor Angioedema of the Intestine: A Case Report and Review of the Literature
作者:Troy D. Schmidt、Kevin M. McGrath
DOI:10.1097/00000441-200208000-00011
日期:2002.8
Visceral angioedema is a rare complication of angiotensin-converting enzyme (ACE) inhibitor use. To date, 15 cases have been reported in the literature. Common presentation is that of a middle-aged woman with abdominal pain, emesis, and diarrhea who has recently begun taking an ACE inhibitor. Signs include leukocytosis, ascites, and edematous small bowel seen on computed tomography. Diagnosis is elusive, and frequently invasive procedures, including surgery, are pursued. These can be avoided if the astute physician recognizes the association and withdraws the offending medication. We present the typical diagnostic dilemma faced in the evaluation of a patient with ACE inhibitor angioedema of the intestine, and review the current available literature.
The Thermal Breakdown of Diaryltetrazoles
作者:Peter A. S. Smith、Edward Leon
DOI:10.1021/ja01550a059
日期:1958.9
Experiments towards the preparation of some binaphthalene derivatives