75612-61-2

Upstream product

• 140149-83-3 B-<2-(trimethylsilyl)ethynyl>-9-borabicyclo<3.3.1>nonane*THF 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 1066-54-2 trimethylsilylacetylene 
• 34452-56-7 trimethylsilyl p-tolylsulfonylacetylene 

Downstream Products

• 31599-61-8 3,4-dimethyliodobenzene 
• 17988-43-1 (3,4-dimethylphenyl)-trimethylsilane 

Relevant academic research and scientific papers

Synthesis of polysubstituted iodobenzene derivatives from alkynylsilanes and 1,3-dienes via diels-alder/oxidation/iodination reaction sequence

The cobalt-catalyzed Diels-Alder reaction of trimethylsilyl-substituted alkynes with 1,3-dienes led to dihydroaromatic intermediates which were transformed into iodobenzene derivatives. For this transformation, the dihydroaromatic intermediates had to be oxidized and the trimethylsilyl-substituted arene had to undergo a silicon-iodine exchange reaction. For this purpose, a number of oxidizing agents and iodonium sources were tested in order to realize the desired two transformations in a single step. Eventually, the combination of tert-butyl hydroperoxide (TBHP), zinc iodide, and potassium carbonate led to the desired oxidation/iodination in good to excellent yields in a short reaction time at ambient temperatures.

RUTHENIUM SILYL-ARENE COMPLEX , AND METHOD FOR PRODUCTION THEREOF

The present invention is to provide a ruthenium complex having a novel arene moiety, which has improved solubility in various solvents, and a method for production thereof. The present invention relates to a novel ruthenium complex having an arene moiety,

Rhodium N-heterocyclic carbene-catalyzed [4 + 2] and [5 + 2] cycloaddition reactions

A rhodium complex of N-heterocyclic carbene (NHC) has been developed for intra- and intermolecular [4 + 2] and intramolecular [5 + 2] cycloaddition reactions. This is the first use of a transition-metal NHC complex in a Diels-Alder-type reaction. For the

Rhodium- or copper-catalysed CH-insertion of carbenoids into dihydro-aromatic compounds and acyclic 1,4-dienes

A straightforward reaction sequence consisting of a cobalt-catalysed Diels-Alder reaction for the generation of dihydroaromatic compounds and a rhodium- or alternatively a copper-catalysed CH-insertion reaction of carbenoids from diazo esters generates highly substituted benzene derivatives. When acyclic 1,4-dienes are synthesised by a cobalt-catalysed 1,4-hydrovinylation reaction, the rhodium-catalysed conversion with diazo esters leads to cyclopropanation rather than CH-insertion products. Georg Thieme Verlag Stuttgart.

An improved cobalt catalyst for homo Diels-Alder reactions of acyclic 1,3-dienes with alkynes

An efficient cobalt(I)-catalysed homo Diels - Alder reaction of acyclic 1,3-dienes and acetylene derivatives is described. The catalyst system consists of a mixture of a readily available CoBr2(dppe) complex, zinc iodide as a cocatalyst, and te

Highly efficient intra-and intermolecular [4 + 2] cycloaddition reaction catalyzed by rhodium complex

(formula presented) A cationic Rh(I) complex, [(η6-C10H8)Rh(cod)]BF4, has been found to be a quite useful catalytic system for both the intermolecular [4 + 2] cycloaddition reaction of 1,3-dienes with nonactivat

An Unprecedented Electronic Preference for the "Meta" Product in Diels-Alder Reactions of Ethynyldialkylboranes. -9-BBN as a Reactive and Versatile Dienophile

-9-BBN undergoes Diels-Alder reactions with acyclic dienes at 100 deg C to afford 1,4-cyclohexadienes in high yields.The novel regiochemistry of these reactions is consistent with an ab initio prediction of advanced bonding to boron in a transition state.

Ethynynl p-Tolyl Sulphone as an Acetylene Equivalent in Diels-Alder Reactions

Ethynyl p-tolyl sulphone undergoes addition to a number of conjugated dienes and the resulting adducts can be reduced to the corresponding cyclohexa-1,4-dienes using sodium amalgam.