Intimately bound coumarin and bis(alkylaminostyryl)benzene fragments: synthesis and energy transfer
摘要:
A novel trichromophoric assembly was synthesized, where two molecules of 7-alkoxy-4-methylcoumarin, acting as energy donors, were linked at a fixed distance and controlled geometry to an energy-acceptor bis(alkylaminostyryl) unit. Resonance energy transfer between the two different species was demonstrated by a careful spectroscopic analysis. (C) 2013 Elsevier Ltd. All rights reserved.
A Selective and General Cobalt‐Catalyzed Hydroaminomethylation of Olefins to Amines
作者:Ji Yang、Fábio G. Delolo、Anke Spannenberg、Ralf Jackstell、Matthias Beller
DOI:10.1002/anie.202112597
日期:2022.1.10
A general and selective synthesis of amines via hydroaminomethylation of olefins in the presence of the specific Co-tert-BuPy-Xantphos catalyst is presented. This novel system is complementary to previously known noble metal catalysts and constitutes one of the most general catalysts for HAM.
介绍了在特定的 Co- tert -BuPy-Xantphos 催化剂存在下通过烯烃的氢氨基甲基化合成胺的一般选择性合成方法。这种新系统是对以前已知的贵金属催化剂的补充,是最常见的 HAM 催化剂之一。
MACHIDA, MINORU;TAKECHI, HARUKO;KANAOKA, YUICHI, CHEM. AND PHARM. BULL., 1982, 30, N 5, 1579-1587
A novel trichromophoric assembly was synthesized, where two molecules of 7-alkoxy-4-methylcoumarin, acting as energy donors, were linked at a fixed distance and controlled geometry to an energy-acceptor bis(alkylaminostyryl) unit. Resonance energy transfer between the two different species was demonstrated by a careful spectroscopic analysis. (C) 2013 Elsevier Ltd. All rights reserved.
Machida, Minoru; Takechi, Haruko; Kanaoka, Yuichi, Chemical and pharmaceutical bulletin, 1982, vol. 30, # 5, p. 1579 - 1587