1,2-Dimethylindole-3-sulfonyl (MIS), the Most Acid- …

Amino Acid-Protecting Groups - UB

involve a carboxylic acid-protecting group which is removed upon amino protection and those that involve less reactive electrophiles on the reagent used to introduce the protecting group. An example of the former is the use of trimethylsilyl esters of amino acids prepared in

  Group, Acid, Protecting, Amino, Amino acid protecting groups

TRABAJO DE FIN DE GRADO LAURA FERNANDEZ …

1 Agradecimientos En este camino recorrido hasta la realización de este trabajo de fin de grado debo agradecer la voluntariedad de …

  Trabajo, Fernandez, Laura, Grado, Trabajo de fin de grado laura fernandez, Trabajo de fin de grado

internacional en RSC de CIES-UB. Auditor - Censor …

12 CONOCIMIENTOASESOR CONOCIMIENTO DE LOS EXPERTOS GRANDES PROFESIONALES DE LA ASESORíA APORTAN SU CONOCIMIENTO Y CONSEJOS Aspectos contables del reparto de dividendos por

STRATEGIC ALLIANCES IN LINER SHIPPING - …

liner commits to collaborate with the other operators when operating ships, rationalizing capacity through joint-scheduling, slot-chartering, terminal and equipment sharing, and designing operational networks, to name just a few of their

  Operator, Liner

Aprendizaje colaborativo en entornos virtuales

Anuario de Psicologia 2001, vol. 32, no 2,63-75 O 2001, Facultat de Psicologia Universitat de Barcelona Aprendizaje colaborativo en entornos virtuales José L. …

  Aprendizaje, Virtuales

ENFERMEDAD DE CROHN - diposit.ub.edu

COLITIS ULCEROSA Y ENFERMEDAD DE CROHN MASTER EN VALORACION DEL DAÑO CORPORAL 2006-2007. 2 RESUMEN Tanto en la E. de Crohn como en la CU, con una etiopatogenia aún desconocida, se postula la teoría

AUDITORIA DE GESTION - diposit.ub.edu

2 -2- LA AUDITORIA DE GESTION RESUMEN La auditoría de gestión es una técnica relativamente nueva de asesoramiento que ayuda a analizar, diagnosticar y

  Auditoria

Cuestionarios de personalidad de Cattell. …

Tabla 1. Factores que recogen las diferentes adaptaciones españolas de los cuestionarios de personalidad de Cattell. RASGO ESPQ CPQ HSPQ 16PF 16PF-5

  Cattell

Fundamentos Administración EGallardo - …

Fundamentos de la Administración Después de estudiar y reflexionar sobre este documento, debería ser capaz de… Explicar qué es la …

  Fundamento

Photoelectron spectroscopy for surface analysis: X …

Photoelectron Spectroscopy (PES) is a general term used to describe the characterization techniques that study the surface of a material by using either X-rays or ultraviolet (UV) light as an excitation source to promote an electronic emission.

  Surfaces, Analysis, Spectroscopy, Photoelectron, Photoelectron spectroscopy, Photoelectron spectroscopy for surface analysis

Chapter 3 Protecting Groups - chem.usu.edu

Chapter 3: Protecting Groups ... relatively strong acid (TFA) to remove * Stable in basic conditions * The reagent, MOMCl, is considered carcinogenic Reagent/Condition Reference MOMCl, NaH in THF or ... Protecting Groups of Amino Groups (i) Masking NH2 (amino) as N3 (azido)

  Group, Acid, Protecting, Amino, Protecting groups, Amino groups

Coupling Reagents - Bachem

Coupling Reagents 2. COUPLING REAGENTS AND . ... amino acid. PG, PG’: protecting groups. Act: activating group. Coupling Reagents 4 tendency to racemize considerably. Ure-thane derivatives, which include standard α-amino protecting groups as Fmoc, Boc, and Z, of amino acids usually retain their optical purity upon …

  Group, Acid, Grantee, Protecting, Coupling, Amino, Amino acids, Coupling reagents, Amino protecting groups, Protecting groups

ORTHOGONALITY OF PROTECTING GROUPS - …

ORTHOGONALITY OF PROTECTING GROUPS ... the amino-protecting group intact. On the other hand, the pairs Boc/OPp or Fmoc/ ivDde are merely quasi-orthogonal because both groups are acid-labile or cleaved by bases, respectively. OPp can be removed selectively in the presence of Boc/tBu by

  Group, Acid, Protecting, Amino, Orthogonality of protecting groups, Orthogonality

Safety-Catch Protecting Groups in Peptide Synthesis

"SAFETY-CATCH" PROTECTING GROUPS IN PEPTIDE SYNTHESIS* Marcel PATEK and Michal LEBL ... which makes this amino acid more difficult to couple and cleave. Both amino acid ... are earlier studies of Okamoto and Brownz1 which utilized the Hammett equation

  Group, Acid, Protecting, Amino, Amino acids, Protecting groups

Solid Phase Peptide Synthesis, Strategies and Resins

Side Chain Protecting Groups Ser, Thr, Tyr: Ether tert-Butylether Asp and Glu: tert-Butylester Lys: boc-protecting group protects the reactive functional group of the amino acid Öprevents formation of branched chains permanent, orthogonal, compatible with Nα-protection Öremain attached troughout the synthesis easy to remove (with acid) after …

  Phases, Strategies, Group, Acid, Rinses, Synthesis, Protecting, Solid, Peptides, Amino, Amino acids, Protecting groups, Solid phase peptide synthesis, Strategies and resins

A Review of Organosilanes in Organic Chemistry - …

A Review of Organosilanes in Organic Chemistry ... amines and amino acids, carboxylic acids, ... Most easily cleaved of all silyl protecting groups in acid and base. Chlorotrimethylsilane, 1M solution in THF 38161 Chlorotrimethylsilane, 1M solution in DCM 38160 Et 3

  Review, Chemistry, Group, Acid, Protecting, Organic, Amino, Protecting groups, Review of organosilanes in organic chemistry, Organosilanes

New Methods in Peptide Synthesis. Part 111.l …

New Methods in Peptide Synthesis. Part 111.l Protection of Carboxyl Group By G. C. Stelakatos, A. Paganou, ... The protecting groups more commonly used so far ... behaviour of O-benzyl and O-tritryl groups. Amino- acid …

  Methods, Group, Part, Acid, Synthesis, Protecting, Peptides, Amino, Protecting groups, Methods in peptide synthesis

Amino Acid-Protecting Groups - UB

involve a carboxylic acid-protecting group which is removed upon amino protection and those that involve less reactive electrophiles on the reagent used to introduce the protecting group. An example of the former is the use of trimethylsilyl esters of amino acids prepared in

  Group, Acid, Protecting, Amino, Amino acid protecting groups

Protecting Groups Handout A - University of Houston

Protecting Groups Hydroxyl Protection Methyl Ethers Formation: ... AlBr 3,EtSH PhSe-Ph 2P-Me 3SiI Stable to Acid and Base CH 2N 2, SiO 2 or HBF 4 NaH, MeI, THF Methylthiomethyl Ethers (MTM) Formation: Stability: Cleavage: MeSCH 2Cl, NaH, THF Stable to base and mild acid ... protecting primary over secondary alcohols. Mild Acid …

  Group, Acid, Protecting, Handouts, Protecting groups, Protecting groups handout a

PROTECTING GROUPS 57 Smith: Chapter 7

PROTECTING GROUPS 58 Methoxyethoxymethyl ethers (MEM) R-OH → R-OCH2OCH2CH2OMe stable to base and mild acid Formation: - MeOCH2CH2OCH2Cl, NaH, THF - MeOCH2CH2OCH2Cl, CH2Cl2, iPr2EtN TL 1976, 809 Cleavage - Lewis acids such as ZnBr2, TiCl4, Me2BBr2 C 5 H 11 O MEM-O

  Group, Acid, Protecting, Protecting groups