a coupling agent between

См. также в других словарях:

• Coupling reaction — A coupling reaction in organic chemistry is a catch all term for a variety of reactions where two hydrocarbon fragments are coupled with the aid of a metal catalyst. In one important reaction type a main group organometallic compound of the type… …   Wikipedia

• Manganese-mediated coupling reactions — are radical coupling reactions between enolizable carbonyl compounds and unsaturated compounds initiated by a manganese(III) salt, typically manganese(III) acetate. Copper(II) acetate is sometimes used as a co oxidant to assist in the oxidation… …   Wikipedia

• Rotational-vibrational coupling — occurs when the rotation frequency of an object is close to or identical to a natural internal vibration frequency. The animation on the right shows a simple example. The motion depicted in the animation is for the idealized situation that the… …   Wikipedia

• Pinacol coupling reaction — A pinacol coupling reaction is an organic reaction in which a carbon carbon covalent bond is formed between the carbonyl groups of an aldehyde or a ketone in presence of an electron donor in a free radical process Ref|1. The reaction product is a …   Wikipedia

• Architectural reprography — covers a variety of technologies, media, and supports typically used to make multiple copies of original technical drawings and related records created by architects, landscape architects, engineers, surveyors, mapmakers and other professionals… …   Wikipedia

• papermaking — [pā′pər māk΄iŋ] n. the making of paper papermaker n. * * * pa·per·mak·ing (pāʹpər mā kĭng) n. The process or craft of making paper.   paʹper·mak er n. * * * Introduction       formation of a matted or felted sheet, usually of cellulose fibres,… …   Universalium

• Samarium — promethium ← samarium → europium ↑ Sm ↓ …   Wikipedia

• Pancratistatin — Not to be confused with Pancreastatin. Pancratistatin Systematic (IUPAC) name (1R,2S,3S,4S,4aR,11bR) 1,2,3,4,7 pentahydroxy 2,3,4,4a,5,11b hexahydro 1H [1,3]dioxolo[4,5 j]phenanthridin 6 one …   Wikipedia

• cement — 1. A layer of bonelike mineralized tissue covering the dentin of the root and neck of a tooth that serves to anchor the fibers of the periodontal ligament. SYN: cementum [TA], substantia ossea dentis, tooth c.. 2. In …   Medical dictionary

• 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone — DDQ redirects here. DDQ is also the former callsign of a TV station in Toowoomba, Australia. 2,3 Dichloro 5,6 dicyano 1,4 benzoquinone[1] …   Wikipedia

• Dental composite — Dental composites. Dental composite resins are types of synthetic resins which are used in dentistry as restorative material or adhesives. Synthetic resins evolved as restorative materials since they were insoluble, aesthetic, insensitive to… …   Wikipedia