منابع مشابه
DABCO-catalyzed regioselective cyclization reactions of β,γ-unsaturated α-ketophosphonates or β,γ-unsaturated α-ketoesters with allenic esters.
Highly efficient DABCO-catalyzed [4 + 2] cycloaddition of β,γ-unsaturated α-ketophosphonates or β,γ-unsaturated α-ketoesters with allenic esters gives the corresponding highly functionalized tetrahydropyran and dihydropyran derivatives in good to excellent yields and moderate to good regioselectivities under mild conditions.
متن کاملStructure reinvestigation of α-, β- and γ-In2S3
Semiconducting indium sulfide (In2S3) has recently attracted considerable attention as a buffer material in the field of thin film photovoltaics. Compared with this growing interest, however, detailed characterizations of the crystal structure of this material are rather scarce and controversial. In order to close this gap, we have carried out a reinvestigation of the crystal structure of this ...
متن کاملSimulation-based Optimal Design of α-β-γ-δ Filter
The existing third-order tracker known as α-β-γ filter has been used for target tracking and predicting for years. The filter can track the targets position and velocity, but not the acceleration. To extend its capability, a new fourth-order target tracker called α-β-γ-δ filter is proposed. The main objective of this study was to find the optimal set of filter parameters that leads to minimum p...
متن کاملSynthesis of cyclically constrained sugar derived α/β- and α/γ-peptides.
A general approach to enantiopure conformationally constrained sugar derived α/β- and α/γ-peptides has been established. Five-membered ring α/β-peptides were synthesized via formyl C-glycofuranosides, easy available from hexose-derived azido-2-equatorial-OH-glycopyranosides by DAST-promoted ring contraction. By means of a regioselective oxidation with TEMPO at C-6 of hexose-derived 3-azido glyc...
متن کاملα–β–γ transformations in Mg2SiO4 in Earth's transition zone
Article history: Phase relations in α–β–γ M Received 31 October 2007 Received in revised form 3 June 2008 Accepted 11 June 2008 Available online 26 June 2008 Editor: R.D. van der Hilst
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1952
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(52)93702-8