https://scientific-programs.sc....ience/wiki/Best_Affo
https://pediascape.science/wik....i/Smart_Vacuum_Clean
A Robot Vacuum Cleaner Sale Can Help Keep Your Floors Clean Robot vacuum cleaners are a great way to keep floors clean regardless of whether you have an expansive home with three shaggy doggies or live in a tiny space. These gadgets are more expensive than vacuums, however they can save you both time and energy. 1. It's more convenient Contrary to traditional vacuums that require you to maneuver

https://www.selleckchem.com/sc....reening-libraries.ht
Spiro-annulation involving δ-acetoxy allenoate and alkyl benzoisothiazole dioxide (N-sulfonyl ketimine) triggered by DABCO/MeCO2H combination leads to an essentially single diastereomer via chemo- and regiospecific [4 + 2]-carboannulation and a new hydroxyl group is introduced. In contrast, DMAP-catalyzed benzannulation using the same reactants affords unsymmetrical m-teraryls via Mannich coupling, sequential proton transfers, and C-N bond cleavage. Here, δ-acetoxy allenoate serves as a 4C-synthon and the carboannulation is completel