Search Results - "Young, G.J."
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A new species of Sartidia (Graminae), endemic to ultramafic soils
Published in South African journal of botany (01-08-2011)“…A species of Sartidia De Winter, first collected by P.J. Muller in 1972 in the Cythna Letty Nature Reserve in Mpumalanga, does not match existing material of…”
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Massive horizontal transfer of mitochondrial genes from diverse land plant donors to the basal angiosperm Amborella
Published in Proceedings of the National Academy of Sciences - PNAS (21-12-2004)“…Several plants are known to have acquired a single mitochondrial gene by horizontal gene transfer (HGT), but whether these or any other plants have acquired…”
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Gene transfer from parasitic to host plants
Published in Nature (London) (11-11-2004)“…Plant mitochondrial genes are transmitted horizontally across mating barriers with surprising frequency, but the mechanism of transfer is unclear. Here we…”
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Metathesis in the presence of a transition metal alkyne complex
Published in Tetrahedron letters (06-08-2001)“…A ring closing metathesis approach to medium sized rings is described. The methodology succeeds in the presence of a transition metal alkyne complex. Graphic…”
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Synthesis of C-aryl glycosides related to the chrysomycins
Published in Tetrahedron (11-11-1996)“…A synthesis of chrysomycin substructure 44 is described in which a Ramberg-Backlund reaction plays a key role. Electrochemical oxidation of 44 provided 45, and…”
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Interaction between coeval mafic and felsic melts in the St. Francois Terrane of Missouri, USA
Published in Precambrian research (30-04-1999)“…In the eastern St. Francois Mountains of Missouri, a 1.48 Ga subvolcanic ring pluton, known as the Silvermine Granite, hosts swarms of dark, pillow-shaped…”
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A General Approach to Medium Ring Alkynes by Using Metathesis of Cobalt Hexacarbonyl Containing Dienes
Published in Journal of organic chemistry (02-05-2003)“…The assembly of medium sized rings (7−9) was achieved by using the metathesis of dienes linked by a cobalt hexacarbonyl complexed alkyne with either Grubbs' or…”
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A preliminary approach to nonenolizable β, β-tricarbonyls: Assembly of a hyperevolutin prototype
Published in Journal of organic chemistry (03-05-2002)“…A synthetic approach to the hyperevolutin A acylated phloroglucinol ring system is described. Thus, intramolecular allene-nitrile oxide cycloaddition of 10 was…”
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Silicon-tethered Heck reaction
Published in Tetrahedron letters (08-01-2001)“…An approach to the synthesis of semicyclic dienes is described. The method employs a silicon-tethered version of the Heck reaction. A palladium catalyzed…”
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Synthesis of a model bicyclic core related to Microscleroderma spirophora steroids
Published in Tetrahedron letters (24-03-2003)“…An approach to the strained B,C-bicyclic nucleus of a heterocyclic class of steroids is described. The approach relies on a sigmatropic shift for installation…”
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Regioselectivity of Intramolecular Nitrile Oxide-Allene Cycloadditions
Published in Heterocycles (2004)Get full text
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The economic value of farm program base
Published in Land economics (01-08-1994)“…Mixed integer programming and dynamic programming models were used to obtain the implicit economic value of the initial endowment of base acreage on a cotton…”
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Diastereoselective Intramolecular Cycloaddition of Vinylsilanes and Silyl Nitronates. Effective Control of Remote Acyclic Asymmetry
Published in Journal of organic chemistry (05-02-1999)Get full text
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Effects of under-load tap changer (LTC) on power system voltage stability
Published in Proceedings of the Twenty-Second Annual North American Power Symposium (1990)“…The effect of load tap changer (LTC) action on a transformer's adjusted side voltage (usually the secondary side of step-down transformers) is evaluated when…”
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Highly diastereoselective hydrosilation reactions. Spirocyclic siloxanes: Sources of Si-based Lewis acids
Published in Tetrahedron letters (05-02-1996)“…Cyclohexylsiloxy hydrides ( e.g., 6) undergo intramolecular hydrosilation with significantly higher levels of stereochemical control (versus their…”
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Nucleophile-Electrophile Interactions in 1,8-Disubstituted Naphthalenes: Structures of Three 1-Naphthaldehydes and a 1-Naphthyl Methyl Ketone
Published in Acta crystallographica. Section B, Structural science (01-02-1998)“…4,8‐Dimethoxy‐5‐(tosyloxy)‐1‐naphthaldehyde (1) and 8‐methoxy‐5‐(tosyloxy)‐1‐naphthaldehyde (2) crystallize such that the formyl groups approach coplanarity…”
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Canadian Glacier Hydrology and Mass Balance Studies; A History of Accomplishments and Recommendations for Future Work
Published in Geografiska annaler. Series A, Physical geography (1984)“…This is a review paper describing the history of glacier mass balance and runoff studies in Canada, evaluating the accomplishments and recommending some areas…”
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C-Aryl glycosides: electrophile-initiated cyclizations of 6-aryl-5-hexen-2-ols
Published in Journal of organic chemistry (01-10-1992)Get full text
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