protective groups

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• Protective sign — Protective signs are symbols to be used during an armed conflict to mark persons and objects under the protection of various treaties of International Humanitarian Law (IHL). While their essential meaning can be summarized as Don t shoot! or Don… …   Wikipedia

• protective covenant — protective covenant, an agreement among property owners in an area not to sell or rent property to members of certain specified ethnic or religious groups; a restrictive covenant …   Useful english dictionary

• pressure groups — Groups of persons, employers, or other organizations joining together to represent the interests of a particular sectional groupvis à vis governments, the public at large, or other interest groups . Pressure groups, lobby groups, and interest… …   Dictionary of sociology

• List of animal welfare groups — Animal welfare groups argue for greater protection for non human animals, particularly those used by human beings in laboratories or in entertainment, as well as domestic animals such as those used for food, labour, or as companions (pets).… …   Wikipedia

• Protecting group — A protecting group or protective group is introduced into a molecule by chemical modification of a functional group in order to obtain chemoselectivity in a subsequent chemical reaction. It plays an important role in multistep organic synthesis.… …   Wikipedia

• Peptide synthesis — In organic chemistry, peptide synthesis is the production of peptides, which are organic compounds in which multiple amino acids are linked via peptide bonds which are also known as amide bonds. The biological process of producing long peptides… …   Wikipedia

• Schutzgruppe — Mit der Butyloxycarbonyl Gruppe an der Aminogruppe geschützte α Aminosäure Glycin. Die Boc Schutzgruppe ist blau markiert …   Deutsch Wikipedia

• Methylthiomethyl ether — In organic chemistry a methylthiomethyl (MTM) ether is a protective group for hydroxyl groups. Hydroxyl groups are present in many chemical compounds and they must be protected during oxidation, acylation, halogenation, dehydration and other… …   Wikipedia

• Silyl ether — General structure of a silyl ether Silyl ethers are a group of chemical compounds which contain a silicon atom covalently bonded to an alkoxy group. The general structure is R1R2R3Si−O−R4 where R4 is an alkyl group or an aryl group. Silyl ethers… …   Wikipedia

• Benzyl — In organic chemistry, benzyl is the term used to describe the substituent or molecular fragment possessing the structure C6H5CH2 . The abbreviation Bn is frequently used to denote benzyl moieties in nomenclature and structural depictions of… …   Wikipedia

• Ether — This article is about a general class of organic compounds. For the specific compound, see diethyl ether. For the computer network technology, see ethernet. For the antiquated physics concept, see Luminiferous aether. For other uses, see Aether… …   Wikipedia