نتایج جستجو برای: 4cr

تعداد نتایج: 207  

Journal: :JSME international journal. Ser. 1, Solid mechanics, strength of materials 1988

2013
Joel Martínez Stephany Romero-Vega Rita Abeja-Cruz Cecilio Álvarez-Toledano René Miranda

Multicomponent reactions are excellent methods that meet the requirements of green chemistry, by reducing the number of steps, and consequently reducing purification requirements. Accordingly, in this work, 11 novel hybrid-boron-containing molecules, namely eight 1,4-dihydropyridines and three 3,4-dihydropyrimidinones, derived from formylphenylboronic acids (ortho, meta and para), were obtaine...

Journal: :Chemistry 2011
David Tejedor Sara López-Tosco Javier González-Platas Fernando García-Tellado

Domino reactions constitute single-operation, multi-step processes able to generate two or more bonds under a constant set of reaction conditions. Usually, they transform simple starting materials into more complex chemical entities utilizing networks of construction reactions. This property makes them excellent synthetic tools to carry out molecular construction with atom-, redoxand step-econo...

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