Organometallic chemistry.(Brief Article)

Chemistry and Industry;  December 18, 2000 ;     578 words ......reaction of aryl bromides with phenoxides (see Figure 1) there was an induction period in which...perphenylated in the induction period (see Figure 2). Preparation, isolation and testing...Hartwig's catalytic process is depicted (see Figure 3). In this, aromatic amines add to ...

Organometallic chemistry.(palladium catalysis)(Brief Article)

Chemistry and Industry;  June 12, 2000 ;     595 words ......imply that an intermediate complex (2) (see Figure 1) may be formed from several different...selectively at the least hindered C-H bonds (see Figure 2). Evidence is presented that the reaction...then trans-addition of these to alkynes (see Figure 3). The net effect of these ...

Organic chemistry.(aromatic molecules)(Brief Article)

Chemistry and Industry;  December 18, 2000 ;     700+ words ......cyclophanes (1), helps this process (see Figure 1). It has now been found that switching...derives from coupling two diyne units (see Figure 2). These components were then capped...contain highly-emissive fluorophores (see Figure 3). Langmuir-Blodgett techniques can...

Organic chemistry.(Technical)

Chemistry and Industry;  August 21, 2000 ;     700+ words ......with polyhydroxylated cyclooctanes (5) (see Figure 1). The eight-membered ring compounds...amino sugar occurring in vancomycin (see Figure 2). The Nozaki--Kishi-coupled product...of allyl esters (11) into urethanes (see Figure 3). The carboxylate residue released...

Organic chemistry.(Brief Article)

Chemistry and Industry;  March 20, 2000 ;     700+ words ......are interesting for different reasons (see Figure 1). The diterpene brassicolene (1) has...and this has now inspired a synthesis (see Figure 2) based on a sequence of furan ring...the product. A nice way around this (see Figure 3) is the homologation of an enol triflate...

Organic chemistry.(includes multiple research results)(Brief Article)

Chemistry and Industry;  October 16, 2000 ;     535 words ......naphthalene-derived components have been made (see Figure 1) by building outward from 1,5-diethers...Elaborate azulene-linked structures (see Figure 2) such as (7) can also be built up by...E W Meijer (Nature, 2000, 407, 167) (see Figure 3). The monomers assemble by forming...

Organic chemistry. (Highlights).(Brief Article)

Chemistry and Industry;  November 19, 2001 ;     700+ words ......of tetrabutylammonium fluoride (TBAF) (see Figure 1). Following this approach and working...unsymmetrical triyne in ichthyothereol (5) (see Figure 2). This has been incorporated from a...in this case, unsymmetrical diyne (7) (see Figure 3). Wittig--Horner step to make an enediyne...

Smooth sailing for Spinnaker Tower, Portsmouth

Concrete;  July 1, 2003 ;     700+ words ......the revitalised harbour at Portsmouth (see Figure 1). Intended as an international landmark...concrete masts have risen 3m each day (see Figure 2). The tower has excited a great deal...mix with relatively late initial set (see Figure 3). The solution was a critical balance...

Organic chemistry.

Chemistry and Industry;  December 20, 1999 ;     700+ words ......library of hydroxy-substituted arylpyrones (see Figure 1). The precursor to the pyrone was a...which (3) is a representative example (see Figure 2). Prolific synthesis of this type exploits...solution-phase diazoketone dimerisation (see Figure 3). Polyhaloaromatic tags were ...

The new development driving contractors up the wall

Concrete;  April 1, 2006 ;     700+ words ......the world of vertical wall stamping (see Figure 1). The vertical wall stamping system...drywall, stone or existing concrete (see Figure 2). The prepared surface must be porous...will be achieved using the texture mats (see Figure 3). Texturing Specially adapted stamps...

Integrated Delivery Systems: Professional Practice Models.

Nursing Economics;  March 1, 2001 ;     700+ words ......the benefit of one structure for a PPM (see Figure 1) but the component parts can be adapted for each organization in the IDS (see Figure 3). [ILLUSTRATIONS OMITTED] The PPM in...feedback loop, and is within a boundary (see Figure 2). The elements of the systems model...

Organic chemistry. (Highlights).

Chemistry and Industry;  March 17, 2003 ;     512 words ......carbonates to form benzodioxins (see Figure 1a). with chirality in the heterocyclic ring. The mechanism (see Figure 2) proposed starts with the classic...of 2 and 3 shows a typical example (see Figure 1b). The anticipated mechanism starts...

Organometallic chemistry.

Chemistry and Industry;  April 16, 2001 ;     457 words ......aryldiazoacetates (for example, 1) in such reactions (see Figure 1). Their recent work has demonstrated...corresponding Z-enol ethers selectively (see Figure 2). Activation of COH groups also occurs...alkynes (Org. Lett., 2000, 2, 4221) (see Figure 3). Triethylborane is a key ...

West India Quay development, Docklands, London

Concrete;  July 1, 2003 ;     700+ words ......station, located on the Isle of Dogs (see Figure 1). The building consists of a one and...private apartments and penthouse flats (see Figure 2). When completed, this will be the...post-tensioned concrete building in the UK (see Figure 3). Foundation and basement structures...

The Falkirk Wheel: -Design of the aqueduct and wheel support structure

Concrete;  November 1, 2002 ;     700+ words ......the canal network of central Scotland (see Figure 1). The form of the aqueduct, wheel building...some interesting engineering challenges (see Figure 2). Arup, the designers, successfully...deck movement under temperature loads (see Figure 3). Movement joints are provided at both...