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Chemistry World
January 29, 2014
Organic matter: Indoxamycins A, C and F In 2012, Erick Carreira's group in Zurich reported the total synthesis of indoxamycin B. 1 This 24-step organometallic tour de force resulted in a structural reassignment and set the bar rather high for future work on this family. mark for My Articles similar articles
Chemistry World
August 30, 2009
Phillip Broadwith
C-H oxidation proves its worth US researchers are going against the grain of total synthesis and developing new approaches to complex molecules. mark for My Articles similar articles
Chemistry World
July 2009
Paul Docherty
Column: Totally Synthetic When it comes to making large natural products, different researchers will often propose identical 'end-game' strategies to complete the target. mark for My Articles similar articles
Chemistry World
March 2011
Paul Docherty
Column: Totally Synthetic Discovered independently by two chemists in the 1870s, it's remarkable that 140 years later, science is still tweaking and improving the aldol reaction. mark for My Articles similar articles
Chemistry World
November 27, 2008
Lewis Brindley
Bryostatin Synthesis Made Simple US chemists have dramatically shortened the synthesis of byrostatin 16, one of a family of natural products that show promising activity against cancer but can't easily be extracted from nature or made artificially. mark for My Articles similar articles
Chemistry World
June 2009
Paul Docherty
Column: Totally Synthetic With potent bacteria-beating activity, it's no surprise that kendomycin has recently grabbed quite a bit of attention. mark for My Articles similar articles
Chemistry World
November 27, 2012
Paul Docherty
Pentalenolactone A methyl ester One team that really gets the Pauson -- Khand reaction or the PKR and all its nuances is that led by Zhen Yang at Peking University in Beijing, China. They recently published a very neat synthesis of the intricate pentalenolactone mark for My Articles similar articles
Chemistry World
November 17, 2008
Simon Hadlington
Catalyst flexes for extra control US chemists have developed a new type of catalyst capable of exerting high stereochemical control over olefin metathesis reactions mark for My Articles similar articles
Chemistry World
April 2010
Paul Docherty
Column: Totally Synthetic When one attempts the first synthesis of a natural product, the set of challenges are often unknown; which intermediates are either inaccessible or unstable, for instance. mark for My Articles similar articles
Chemistry World
June 1, 2012
Paul Docherty
atrop-Abyssomicin C This member of the abyssomicin family is the only one to achieve bacteria-bashing prowess, and is also the only one to feature atropisomerism -- a relatively unusual form of stereoisomerism in naturally occurring species mark for My Articles similar articles
Chemistry World
February 2011
Paul Docherty
Column: Totally Synthetic Although most of the natural products I've discussed have had biological activity at the core of the rationale for their synthesis, most organic chemists will admit that an unusual chemical structure is by far the stronger draw. mark for My Articles similar articles
Chemistry World
January 2011
Paul Docherty
Column: Totally Synthetic Although the story is incomplete, the target is a worthy challenge - leiodolides A and B have powerful activity and selectivity against NI60 tumour cells, and may lead to therapeutic agents. mark for My Articles similar articles
Chemistry World
September 4, 2008
Fred Campbell
Two catalysts better than one US researchers have cracked a long standing problem in chemical synthesis - the catalytic alpha-alkylation of aldehydes - by combining two catalysts in one pot. mark for My Articles similar articles
Chemistry World
May 29, 2013
Paul Docherty
Pactamycin A member of a 'rival' field stating that a molecule is 'inaccessible by synthetic organic chemistry' is like a red rag to the proverbial bull. This challenge surrounds analogs of pactamycin, a complex cyclopentane-based target with an exceptionally potent biological profile. mark for My Articles similar articles
Chemistry World
September 20, 2007
Lewis Brindley
New Catalyst Rings the Changes Organic chemists in the US have developed a method to control the stereochemistry of a useful intramolecular Diels-Alder reaction. mark for My Articles similar articles
Chemistry World
January 2009
Paul Docherty
Column: Totally Synthetic In the search for new biologically active natural products, sometimes a team isolating a new compound family will be lucky enough to find one active member. mark for My Articles similar articles
Chemistry World
August 2010
Paul Docherty
Column: Totally Synthetic The total synthesis of macrolide targets is now a relatively mature field. Any synthesis that bucks these trends grabs attention, with a recent publication of dictyosphaeric acid A by Richard Taylor's team at the University of York, UK, a case in point. mark for My Articles similar articles
Chemistry World
July 30, 2013
Paul Docherty
Melotenine A Chirality, where would we be without you? Often the bane of the synthetic chemist's life, the challenge of asymmetry is perhaps what makes total synthesis so endlessly intriguing. mark for My Articles similar articles
Chemistry World
June 1, 2006
Michael Gross
New Twists on Catalysis Chemists around the world have discovered several new twists to improve the performance of asymmetric catalysts in hydrogenation reactions. mark for My Articles similar articles
Chemistry World
June 2011
Column: Totally Synthetic I've never heard of the Polonovski-Potier reaction, the keystone of a remarkable synthesis by a team led by Tohru Fukuyama at the University of Tokyo, Japan. mark for My Articles similar articles
Chemistry World
September 2009
Paul Docherty
Column: Totally Synthetic Maduropeptin chromophore (the active component of a chromopore-protein complex, noted as for its potent antitumor and antibiotic activity) is built of two distinct domains mark for My Articles similar articles
Chemistry World
July 27, 2015
(--)-Jiadifenolide I believe that Ryan Shenvi's could well be the last synthesis we see of the popular neurotrophic agent jiadifenolide, at least for some time. mark for My Articles similar articles
Chemistry World
February 27, 2012
Phillip Broadwith
Bending carbonyl reactivity rules Belgian chemists have uncovered a method to bypass the standard reactivity hierarchy of carbonyl compounds, allowing a ketone or ester to be reduced in the presence of a more reactive aldehyde. mark for My Articles similar articles
Chemistry World
June 2010
Paul Docherty
Column: Totally Synthetic Although its chemistry is mature and varied, my use of silicon reagents in my synthetic forays has been limited to a somewhat clumsy use of hydroxyl protecting groups. mark for My Articles similar articles
Chemistry World
January 2, 2013
Paul Docherty
Flueggine A One of the most prolific sources of biologically active natural products is traditional medicines -- whose active components can be exceptionally potent. The Euphorbiaceae family of plants is a productive source of medicinal targets, including the Securinega alkaloids. mark for My Articles similar articles
Chemistry World
August 16, 2009
Tom Bond
Catalyst free carbon-carbon bond formation The method offers an environmentally friendly way to form one of the most important bonds in organic synthesis. mark for My Articles similar articles
Chemistry World
June 25, 2008
Lewis Brindley
Slick synthesis to sea sponge structure Chemists in the US have devised a new route to (-)-cyanthiwigin F, a complex biomolecule active against tumors mark for My Articles similar articles
Chemistry World
October 11, 2012
Ian Le Guillou
Turbo-charged Diels-Alder reaction The Diels - Alder reaction is one that sticks in the mind of even the most reluctant chemistry student -- there is a certain elegance in the ring formation from an alkene and diene. mark for My Articles similar articles
Chemistry World
December 2009
Paul Docherty
Column: Totally Synthetic What turns a good synthesis into a great synthesis are the steps surrounding that motif, something that Darren Dixon from the University of Oxford, UK, exemplifies with this synthesis of Nakadomarin A. mark for My Articles similar articles
Chemistry World
August 2007
Derek Lowe
Opinion: In the Pipeline Process chemists just don't get the credit they deserve. mark for My Articles similar articles
Chemistry World
August 22, 2014
Derek Lowe
Death of a reagent Anyone who's been practicing organic chemistry for a while can think back to reactions and reagents that were once in far wider use than they are today. mark for My Articles similar articles
Chemistry World
February 4, 2011
Elinor Richards
Strychnine in just six steps Strychnine, best known as a poison but also used medicinally as a stimulant, can now be synthesised in just six steps, say US scientists. mark for My Articles similar articles
Chemistry World
February 21, 2008
Lewis Brindley
Esters Made Easy with Indium Indium is the basis of a novel catalyst designed to make useful cyclic esters. This catalyst could greatly simplify the production of chiral dihydropyranones, important structural elements in many natural products and pharmaceuticals. mark for My Articles similar articles
Chemistry World
October 2009
Column: In the pipeline Derek Lowe discusses the problem of leaning too heavily on favorite reactions mark for My Articles similar articles
Chemistry World
March 22, 2013
Paul Docherty
Acutumine A burgeoning class of natural products has been found to restrain the immune system. Acutumine is a relatively recent addition to this collection, even though it was first isolated in the 1920s. The potential of these targets has not gone unnoticed in the synthetic community. mark for My Articles similar articles
Chemistry World
April 25, 2014
Derek Lowe
Engineering serendipity At this stage in the world of organic chemistry, you'd have to think that many of the great reactions that can be stumbled across with known reagents have probably been found. mark for My Articles similar articles
Chemistry World
May 2010
Paul Docherty
Column: Totally Synthetic In the case of englerin A, the synthetic strategies used by Dawei Ma's group at the Chinese Academy of Sciences, Shanghai, China, 1 and Antonio Echavarren's team at Rovira and Virgili University, Tarragona, Spain, 2 are extremely similar. mark for My Articles similar articles
Chemistry World
June 29, 2015
Organic odysseys Valuable compounds often come from the strangest places, and in such small concentrations that synthetic chemistry has to step up. mark for My Articles similar articles
Chemistry World
October 22, 2008
Susan Aldridge
A greener route to amines Researchers based in Israel have developed an easier way to make troublesome primary amines, using a new ruthenium catalyst. mark for My Articles similar articles
Chemistry World
December 2008
Paul Docherty
Column: Totally Synthetic Pseudolaric acid B: regular readers of this column's online incarnation will have noticed that this is the second appearance for this particular synthesis. mark for My Articles similar articles
Chemistry World
February 2010
Paul Docherty
Column: Totally Synthetic Palau'amine is an alkaloid which has stubbornly held off synthesis for over 15 years. Its nemesis comes in the form of Phil Baran at the Scripps Research Institute, La Jolla, US. mark for My Articles similar articles
Chemistry World
August 29, 2012
Paul Docherty
Amphidinolide F We're plunging into the marine depths to find natural products with prodigious biological activity. The amphidinolide family comprises over 30 members, varying in architecture but (almost) all featuring a complex and highly decorated macrolactone ring at the core. mark for My Articles similar articles
Chemistry World
June 2008
Paul Docherty
Column: Totally Synthetic Harvard University's David Evans is renowned for his prowess with an aldol reaction, and he has used the endlessly flexible transformation to make a diverse range of natural products. mark for My Articles similar articles
Chemistry World
April 2012
Paul Docherty
Column: Totally Synthetic Detecting rearrangements still seems like an abstract ability for aspiring synthetic chemists. Erick Carreira's synthesis of indoxamycin B is a great case in point, employing two rearrangement reactions. mark for My Articles similar articles
Chemistry World
April 2007
Derek Lowe
Opinion: In the Pipeline Natural products can be ridiculously complicated. The sheer difficulty of the enterprise is traditionally what made pharmaceutical companies hire people who had worked in total synthesis. But, is total synthesis research still worth the effort? mark for My Articles similar articles
Chemistry World
March 25, 2011
Simon Hadlington
New synthesis for chiral anticancer compound The promising anticancer compound nutlin-3 is likely to become more widely available to researchers thanks to a new synthetic protocol developed by US chemists. mark for My Articles similar articles
Chemistry World
October 2010
Paul Docherty
Barekoxide and barekol Like most scientists, organic chemists can often obsess about a problem, endlessly pursuing the perfect yield or enantioselectivity, often leading to tears and broken glassware. mark for My Articles similar articles
Chemistry World
September 6, 2006
Michael Gross
Selective Shortcut Chemists have developed a simple catalyst that speeds up the synthesis of a chiral protected building block used in many complex syntheses. mark for My Articles similar articles
Chemistry World
November 2010
Paul Docherty
Column: Totally Synthetic Perhaps the most familiar (and dull - they do say that familiarity breeds contempt.) chemical reaction to medicinal chemists is the amide bond formation. mark for My Articles similar articles
Chemistry World
November 2009
Paul Docherty
Column: Totally Synthetic The hunt for anticancer therapies is inextricably linked with natural products (such as taxol), and more specifically with macrolides. mark for My Articles similar articles