1,692 research outputs found
(R)-alpha-aminoadipic acid : a valuable building block for the synthesis of alpha-amino acids
No full textSadiq A. (R)-alpha-aminoadipic acid : a valuable building block for the synthesis of alpha-amino acids. Bielefeld; 2013
(R)-alpha-Aminoadipic acid: an interesting chiral pool building block
No full textSadiq A, Sewald N. (R)-alpha-Aminoadipic acid: an interesting chiral pool building block. ARKIVOC. 2012;2012(5):28-36.(R)-alpha-Aminoadipic acid is available on a large scale by enzymatic cleavage from cephalosporin C (CephC) in the production of 7-aminocephalosporanic acid (7-ACA). It can be converted into other interesting enantiomerically pure compounds, e. g. derivatives of (R)-pipecolic acid (R-piperidine-2-carboxylic acid), (R)-6-oxopiperidine-2-carboxylic acid, (R)-1,2,3,4-tetrahydropyridine-2(2H)-carboxylates, and other compounds obtained by further conversions of these products
Aggregative risk analysis for water quality failure in distribution networks
No full textAggregative risk analysis for water quality failure in distribution networks Sadiq, R., Kleiner, Y., Rajani, B
6-Alkynyl- and 6-Aryl-Substituted (R)-Pipecolic Acid Derivatives
No full textSadiq A, Sewald N. 6-Alkynyl- and 6-Aryl-Substituted (R)-Pipecolic Acid Derivatives. Organic Letters. 2013;15(11):2720-2722.(R)-alpha-Aminoadipic acid is a readily available enantiomerically pure starting material for the synthesis of (R)-pipecolic acid and its derivatives. Sonogashira or Suzuki cross-coupling reactions of an Wormyl pipecolate-derived vinyl bromide furnish 6-alkynyl or aryl derivatives. Reduction with sodium cyanoborohydride and subsequent N-deformylation provide 6-alkynyl substituted (R)-pipecolic acid derivatives, valuable building blocks for amino acid and peptide chemistry
Magnetic induction framework synthesis: a general route to the controlled growth of metal-organic frameworks
No full textAbstract not availableHaiqing Li, Muhammad Munir Sadiq, Kiyonori Suzuki, Paolo Falcaro, Anita J. Hill∥ and Matthew R. Hil
(R)-α-Aminoadipic Acid: A Versatile Precursor for the Synthesis of D-Amino Acids
No full textSadiq A, Sewald N. (R)-α-Aminoadipic Acid: A Versatile Precursor for the Synthesis of D-Amino Acids. Journal of Amino Acids. 2013;2013: 252813.The ready accessibility of (R)-α-aminoadipic acid by enzymatic cleavage of cephalosporin C (CephC) in the production of 7-aminocephalosporanic acid (7-ACA) on a large scale makes it a favorable chiral pool building block for the synthesis of unusual amino acids. A route for the synthesis of C-5-alkenyl and C-6-alkylidene derivatives of (R)-pipecolic acid is described which utilizes (R)-α-aminoadipic acid as the enantiomerically pure starting material. Moreover, the synthesis of azido and triazolyl derivatives of (R)-α-aminoadipic acid is reported.</jats:p
sj-pdf-1-sco-10.1177_2050313X221080642 – Supplemental material for A case of sudden mixed hearing loss in SARS-CoV-2
No full textSupplemental material, sj-pdf-1-sco-10.1177_2050313X221080642 for A case of sudden mixed hearing loss in SARS-CoV-2 by Abid M Sadiq, Denis R Katundu and Huda F Akrabi in SAGE Open Medical Case Reports</p
The legal framework for private sector development in a transitional economy : the case of Poland
No full textThe economies of Central and Eastern Europe are in the midst of a historic transition from central planning and state ownership to development of a market-driven private sector. This transition requires comprehensive changes in"rules of the game"- including the legal framework for economic activity. A market economy presupposes a set of property rights and a system of laws or customs that allow the exchange of those rights. The legal framework in a market economy has at least three basic functions: defining the universe of property rights; setting the rules for entry into and exit from productive activities; and setting the rules of market exchange. These legal tasks are accomplished by areas of law such as: company, foreign investment, bankruptcy, contract and competition law. Poland has a rich legal tradition dating from pre-socialist times, which was suppressed but not eliminated during its forty years of socialism. This tradition is being revised as the country moves toward a private market economy. The current legal framework in Poland closely follows other continental jurisdictions and has a clear and reasonable internal logic. Many of the laws are old, but most are flexible enough to permit a wide range of modern, market-oriented activity. Property law, however, remains a"jungle". The wide discretion and general lack of precedent create tremendous legal uncertainty that is sure to hamper private sector development.Environmental Economics&Policies,Banks&Banking Reform,Municipal Housing and Land,Legal Products,Land and Real Estate Development
The taxation of international maritime leasing profits: Has the commissioner's ship come in?
No full textIn light of McDermott Industries (AUST) Pty Ltd v Commissioner of Taxation, and Draft Taxation Ruling TR 2006/D8, this article considers the current Australian taxation position of profits arising from the cross-border leasing of vessels in the maritime industry. It focuses on the tax treaties to which Australia is a party, in particular the application of the business profits provisions of those treaties, and the deemed existence of a permanent establishment where substantial equipment, owned by a fiscal non-resident, is used within Australian waters
Magnetic metal-organic frameworks for efficient carbon dioxide capture and remote trigger release
No full textMagnetic metal-organic framework (MOF) composites show highly efficient CO₂ desorption capacities upon their exposure to an alternating magnetic field, demonstrating a magnetic induction swing strategy for potentially low-energy regeneration of MOF adsorbents.Haiqing Li, Muhammad Munir Sadiq, Kiyonori Suzuki, Raffaele Ricco, Christian Doblin, Anita J. Hill, Seng Lim, Paolo Falcaro and Matthew R. Hil
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