The impact of air pollution on green investments: Green preference and investor sentiment.

Green assets are sensitive to environmental changes and are pivotal in achieving sustainable development. Some empirical studies have shown that air pollution, as part of environmental change, affects stock market investment; however, the mechanisms by which air pollution affects investment in green assets have not been explored in depth. This study investigates the impact of air pollution on green stocks through investor sentiment and green preference. Our empirical analysis reveals that declining air quality prompts negative investor sentiment, exerting an adverse impact on the stock market. Conversely, green preference exerts a positive influence on green stocks, with the magnitude of this effect being contingent on the degree of greenness (i.e., depth and breadth) of the stocks. Companies with a high degree of greenness experience a significant positive correlation between air pollution and stock prices, whereas this relationship is not significant for companies with lower greenness. Furthermore, the COVID-19 pandemic has served to alleviate the impact of air pollution on the stock market due to the diversion of public attention by COVID-19. These findings show that governments can take measures to mitigate negative impacts and facilitate green preference to promote green economic transformation and upgrading.

The effect of air pollution on Chinese green bond market: The mediation role of public concern.

Green bonds are becoming increasingly important in sustainable investments since their environmental protection attributes allow them to benefit from environmental degradation. However, the mechanism of environmental degradation on green bonds has not yet been studied. This study proposes a mediation model to analyze air pollution's influence on green bonds. Theoretically, air pollution leads to increased public concern through public environmental awareness and perceptions of physical health risks. Enhanced public concern drives investors' green preference and environmental responsibility, thus expanding green bond demand, in which public concern plays an important mediation role. To verify the mediating effect, causal stepwise regression and bootstrap methods are used. The empirical results confirm this theoretical mechanism. Air pollution is significantly positively related to public concern. Public concern is positively linked with green bond investment willingness, resulting in increased volatility. The total positive effect of air pollution on green bonds is partly absorbed by the mediating effect of public concern that is significantly positive and reaches 30.21% of the total effect. In addition, major crisis events (e.g., COVID-19) may hinder the positive mediation process by generating a negative trend and distracting the public. This means that the government could propose appropriate measures to minimize the negative aspects in order to promote green finance. The mediation model is also useful for investors wishing to increase green assets in their portfolios and provides an incentive for businesses to promote green finance.

Bioinspired Synthesis of Nortriterpenoid Propindilactone G.

A concise bioinspired synthesis of Schisandra nortriterpenoid propindilactone G has been accomplished from a readily accessible steroidal lactone. Key transformations include a Breslow remote functionalization, a Suárez remote radical functionalization, a ring expansion enabled by a Wagner-Meerwein rearrangement, a stereoinversion of a tertiary alcohol, and a biomimetic transesterification/oxa-Michael addition cascade. This work also provides experimental evidence of the putative propindilactone G biosynthesis pathway.

Photoredox-Catalysis Fluorosulfonyldifluoromethylation of Unactivated Alkenes and (Hetero)arenes with ICF2SO2F.

The fluorosulfonyldifluoromethylation of unactivated alkenes and (hetero)arenes with iododifluoromethanesulfonyl fluoride (ICF2SO2F) under visible light photoredox catalysis was successfully developed. Key to the successful fluorosulfonyldifluoromethylation of aromatic compounds was the usage of AgOTf as an additive to promote the formation of the CF2SO2F radical. The protocol provided a straightforward way to introduce the interesting and useful CF2SO2F group on sp3 and sp2 carbons.