نتایج جستجو برای: step synthesis

تعداد نتایج: 659472  

Journal: :iranian journal of pharmaceutical research 0
abolghasem moghimi department of chemistry, imam hossein university, tehran, iran mostafa vojdani 1.department of chemistry, imam hossein university, tehran, iran 2. department of nuclear medicine, the educational, research and clinical center, dr. masih daneshvari hospital, tehran, iran ali r banan department of chemistry, imam hossein university, tehran, iran ahmad mollaei department of chemistry, imam hossein university, tehran, iran mojtaba mahmoodian department of chemistry, imam hossein university, tehran, iran sayyed mojtaba moosavi department of chemistry, imam hossein university, tehran, iran

improvements in the two-step synthesis of 1,1,1,3,3,3-hexafluoro-2- (fluoromehoxy)propane (sevoflurane) that result in the product cost reduction, safety level enhancement and positive environmental impacts are described. this process consists of chloromethylation reaction of 1,1,1,3,3,3-hexafluoro-2-propanol (hfip) followed by a halogen-exchange fluorination. this is the first synthesis of sev...

Journal: :Agricultural and Biological Chemistry 1983

Journal: :Agricultural and Biological Chemistry 1983

Journal: :Chemical Society Reviews 2017

Journal: :The Ulster Medical Journal 1968

2004
Iosif Bena Nicholas P. Warner

We construct a new harmonic family: dielectric flow solutions with maximal supersymmetry in eleven-dimensional supergravity. These solutions are asymptotically AdS4 ×S7, while in the infra-red the M2 branes are dielectrically polarized into M5 branes. These solutions are holographically dual to vacua of the mass deformed theory on M2 branes. They also provide an interesting insight on the super...

2014
Zheng Tracy Ke Jiashun Jin Jianqing Fan

As mentioned before, the success of CASE relies on two noteworthy properties: the Sure Screening (SS) property and the Separable After Screening (SAS) property. In this section, we discuss the two properties in detail, and illustrate how these properties enable us to decompose the original regression problem to many small-size regression problems which can be fit separately. We then use these p...

Journal: :Math. Comput. 2000
David C. Terr

I describe a modification to Shanks’ baby-step giant-step algorithm for computing the order n of an element g of a group G, assuming n is finite. My method has the advantage of being able to compute n quickly, which Shanks’ method fails to do when the order of G is infinite, unknown, or much larger than n. I describe the algorithm in detail. I also present the results of implementations of my a...

2009
R. G. Adams R. Blieszner Adams

Baby boomers will begin entering old age in 2011. They will be the largest and most diverse cohort ever to experience this life-course transition. The sheer number of baby boomers has challenged institutions time after time (Dychtwald, 1990). Despite extensive speculation regarding the political, economic, and social impact that the aging of baby boomers will have on American society, no one ha...

2002
Bert Janssen Yolanda Lozano

We argue that the giant graviton configurations known from the literature have a complementary, microscopical description in terms of multiple gravitational waves undergoing a dielectric (or magnetic moment) effect. We present a non-Abelian effective action for these gravitational waves with dielectric couplings and show that stable dielectric solutions exist. These solutions agree in the large...

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