Technogenic influence of automobile transport on the environment steadily rises, and up to present time about 40% of toxic substances and soot enters the atmosphere with waste gases from internal – combustion engines. It should be also mentioned, that with the rise of the number of diesel transport the hope to reduce the level of harmful wastes into the atmosphere failed, the problem sharply aggravated because the diesels throw up to one per cent of soot in the form of hard particles (HP) from the total expense of fuel. One of perspective directions of reducing HP with waste gases is putting antismoke, multifunctional additives into the fuel, particularly, barium-containing antismoke complexes of different nature, that permits to achieve the needed aim without changing the construction of diesels and the system of their feeding. It is well known, however, that in spite of the wide spreading of using the barium-containing antismoke additives to diesel fuel, the latter, for a number of reasons, such as the rise of ash content, the coefficient of filtering the fuel, relatively high content in the fuels, and connected with it, the existence of the vast quantity of oxide and carbonate of barium in the gas wastes does not completely satisfy the demands of ecology as well. In this connection much interest have the additives on the base of metal-organic complexes, combining in their structure barium and easy ionizing metals with changing valence from the IV-th period of Periodical system of elements, displaying synergetic catalytic effect in the process of burning the soot, formed while combustion, at a top low working concentrations. As a result of carried out investigations in this field, there have been developed the accessible methods of synthesis mono-and binuclear alkyl-carbonal derivatives of ferrocene and cymantrene. LMC5H4C (R1R2) OH (where LM=C5H5Fe;(OC)3Mn) R1=R2=ar.,alk., as well as the study of their properties as polyfunctional additives to diesel fuels, as its known, that cymantrene and many of its derivatives display the properties of anti-detonating additives for the motor fuels, which replaced the harmful for ecology tetracthyllead(TEL), as well as the effective antismoke additives for diesel fuels. Thus, as a result of carried out investigations, there has been developed a one-staged method of synthesis the aryl-alkylcarbinol derivatives of ferracene and cymantrene, which can be put into the base of the process of obtaining the high effective antismoke additives to the diesel fuels, satisfying demands of ecology while exploitation of diesel auto transport.