Results 91 to 100 of about 1,721 (198)

Alkynes and Azides: Not Just for Click Reactions. [PDF]

open access: yes, 2012
We recently reported two unexplored reactivities of alkynes and azides. The first method reacts nucleophilic alkynes and electrophilic azides to synthesize sulfonyl-substituted 1,5-disubstituted-1,2,3-triazoles.
Croatt, Mitchell   +2 more
core   +1 more source

Tautomeric Equilibria Studies by Mass Spectrometry [PDF]

open access: yes, 2008
Tautomerism in organic chemistry has been extensively studied in condensed phase by spectrometric methods, mainly by IR and NMR techniques. Mass spectrometry studies start 40 years ago but just recently it has been recognized the importance of the mass ...
Eduardo A. Castro   +3 more
core   +1 more source

Síntese e reactividade de 2H - Azirinas [PDF]

open access: yes, 2007
Tese de Doutoramento em Ciências (Área de Especialização em Química Orgânica)O trabalho teve como objectivo primeiro, sintetizar 2H-azirinas com o grupo sulfinilo na posição 3.
Sousa, João Henriques de
core  

Enantiomerically Enriched Aziridine-2-carboxylates via Copper-Catalyzed Reductive Kinetic Resolution of 2H-Azirines [PDF]

open access: yes
We present the first reductive kinetic resolution of racemic 2H-azirines to prepare optically enriched N-H aziridine-2-carboxylates, which are bench stable and easily diversifiable building blocks, concomitantly with the corresponding enantiomerically ...
Chiu, Pauline   +3 more
core   +1 more source

Main Group Organic Isomers: Probing the Origin of Thermodynamic Stabilities, and Finding Influence of Aromaticity [PDF]

open access: yes, 2018
目前的博士后研究报告主要包括主族有机化合物热力学稳定性的理论论证,方向性评级,有机反应途径的预测、解释以及具有针对性结果的展望。下面给出对所做工作的简要介绍。 BN掺杂的有机类似物作为用于储氢的脂肪族胺硼烷,芳香环硼氮烷的前体和吸附剂笼状氮硼烷是令人感兴趣的。但是BN掺杂的脂肪族多烯仍未被研究。在这项研究中,我们进行了两个单BN掺杂脂肪族低级多烯,1,3-丁二烯和1,3,5-己二烯的理论计算。为了预测其异构体的相对热力学稳定性,提出了通用的规则 ...
MUHAMMAD ROUF ALVI
core  

Research Experience for Undergraduates Program, 2010 [PDF]

open access: yes, 2010
Supported by the National Science ...
University of Arkansas, Fayetteville. Dept. of Chemistry and Biochemistry
core   +1 more source

Vinyl azides in heterocyclic synthesis [PDF]

open access: yes, 1983
Imperial Users ...
Tsoi, S. C., Tsoi, S. C.
core  

Synthesis and crystal structures of new chiral 3-amino-2H-azirines and the Pd complex of one of them. [PDF]

open access: yesActa Crystallogr C Struct Chem, 2023
Linden A   +4 more
europepmc   +1 more source

Direkte Bestimmung der Additionsgeschwindigkeiten von Carbenium-Ionen an Alkene [PDF]

open access: yes, 1986
Brede   +9 more
core   +1 more source

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