749923-25-9

Upstream product

• 21211-65-4 di(pyrrol-2-yl)methane 
• 74032-45-4 S-2-pyridyl 4-methylbenzothiolate 
• 816454-67-8 10-(9-borabicyclo[3.3.1]non-9-yl)-1-(4-methylbenzoyl)dipyrromethane 
• 750646-78-7 10-(9-borabicyclo[3.3.1]non-9-yl)-1-(4-methylbenzoyl)dipyrromethane 

Downstream Products

• 816454-67-8 10-(9-borabicyclo[3.3.1]non-9-yl)-1-(4-methylbenzoyl)dipyrromethane 
• 937809-99-9 9-bromo-1-(4-methylbenzoyl)dipyrromethane 
• 937810-00-9 C₂₉H₃₃BrN₄ 

Relevant academic research and scientific papers

Sparsely substituted chlorins as core constructs in chlorophyll analogue chemistry. Part 1: Synthesis

Five routes to stable chlorins bearing 0 or 1 meso substituents have been investigated, among which reaction of a 9-bromo-1-formyldipyrromethane and 2,3,4,5-tetrahydro-1,3,3-trimethyldipyrrin proved most effective. Application of this route afforded metal

Boron complexation strategy for use in manipulating 1-acyldipyrromethanes

A method of making a metal complex comprises combining a 1-monoacyldipyrromethane with a compound of the formula R1R2MX, wherein M is boron, R1 and R2 are each independently organic substituents; and X is an anion leaving group; to produce a metal complex of the formula DMR1R2 wherein DH is a 1-monoacyldipyrromethane. The methods and complexes are useful for the purification and synthesis of dipyrromethanes and porphyrins.

Boron complexation strategy for use in manipulating 1-acyldipyrromethanes

A method of making a metal complex comprises combining a 1-monoacyldipyrromethane with a compound of the formula R1R2MX, wherein M is boron, R1 and R2 are each independently organic substituents; and X is an anion leaving group; to produce a metal complex of the formula DMR1R2 wherein DH is a 1-monoacyldipyrromethane. The methods and complexes are useful for the purification and synthesis of dipyrromethanes and porphyrins.

Boron-complexation strategy for use with 1-acyldipyrromethanes

1-Acyldipyrromethanes are important precursors in rational syntheses of diverse porphyrinic compounds. 1-Acyldipyrromethanes are difficult to purify, typically streaking upon chromatography and giving amorphous powders upon attempted crystallization. A solution to this problem has been achieved by reacting the 1-acyldipyrromethane with a dialkylboron triflate (e.g., Bu 2B-OTf or 9-BBN-OTf) to give the corresponding B,B-dialkyl-B-(1- acyldipyrromethane)boron(III) complex. The reaction is selective for a 1-acyldipyrromethane in the presence of a dipyrromethane. The 1-acyldipyrromethane-boron complexes are stable to routine handling, are soluble in common organic solvents, are hydrophobic, crystallize readily, and chromatograph without streaking. The 1-acyldipyrromethane can be liberated in high yield from the boron complex upon treatment with 1-pentanol. Alternatively, the 1-acyldipyrromethane-boron complex can be used in the formation of a trans-A2B2-porphyrin. In summary, the boron-complexation strategy has broad scope and greatly facilitates the isolation of 1-acyldipyrromethanes.