Matzo "Matzot Mitzvah" (the Shĕmurah matzo eaten during Passover) to a Kohen child to eat. "Egg (sometimes "enriched") matzo" are matzot usually made with fruit juice, often grape or apple juice instead of water, but not necessarily with eggs themselves. There is a custom among some Ashkenazi Jews not to eat them during Passover, except for the elderly, infirm, or children, who cannot digest plain matzo; these matzot are considered to be kosher for Passover if prepared otherwise properly. The issue of whether egg matzo is allowed for Passover comes down to whether there is a difference between the various liquids
Meta-selective C–H functionalization copper catalyzed C–H arylation. "Meta"-olefinated biologically important biphenyl, amino acid and Baclofen derivatives have been accessed by remote C–H activation assisted by the "end-on" template. These demonstrate the potential applications of meta-selective C–H functionalization in medicinal chemistry. Meta-selective C–H functionalization "Meta"-selective C–H functionalization refers to the regioselective reaction of a substituted aromatic ring on the C–H bond "meta" to the substituent. Substituted aromatic ring is an important type of substructure in pharmaceuticals and industrial compounds. Thus, synthetic methods towards substituted aromatic rings are always of great interest to chemists. Traditionally, regioselectivity on the aromatic ring is achieved by the electronic