Triton-B Catalyzed, Green and Efficient Method for the Synthesis of Dithiocarbazates
作者:Sadaf Zaidi、Mridula Saxena
DOI:10.14233/ajchem.2019.21973
日期:2019.6.10
A novel, solvent free and high yielding method was accomplished for one-pot synthesis of dithiocarbazates by the reaction of various alkyl halides (primary, secondary and tertiary) with variety of substituted hydrazines using Triton-B (benzyl-trimethylammonium hydroxide) and carbon di sulphide. This new method of synthesizing dithiocarbazates involves mild conditions, simple procedures and high yields of the products as compared to previously used methods.
METHOD FOR PRODUCING POLYMER, POLYMER, COMPOSITION FOR FORMING INSULATING FILM, METHOD FOR PRODUCING INSULATING FILM, AND INSULATING FILM
申请人:JSR Corporation
公开号:EP1705206A1
公开(公告)日:2006-09-27
There are provided a method for producing a polymer, a polymer, an insulating-film-forming composition, a method for producing an insulating film, and an insulating film capable of forming a film which is suitably used as an interlayer dielectric for semiconductor devices or the like and exhibits a low relative dielectric constant, excellent mechanical strength and adhesion, and uniform quality.
A method for producing a polymer of the invention comprises hydrolyzing and condensing (B) a hydrolyzable-group-containing silane monomer in the presence of (A) a polycarbosilane, the polycarbosilane (A) being a polymer (I) obtained by reacting (a) a compound shown by the following general formula (1) and (b) at least one compound selected from the group consisting of a compound shown by the following general formula (2) and a compound shown by the following general formula (3) in an organic solvent in the presence of at least one of an alkali metal and an alkaline earth metal,
R1kCX4-k (1)
R2kSiY4-k (2)
R3mY3-mSiCR4nX3-n (3)
wherein R1 to R4 individually represent a monovalent organic group or a hydrogen atom, X represents a halogen atom, Y represents a halogen atom or an alkoxy group, k represents an integer from 0 to 3, and m and n individually represent integers from 0 to 2.
Petrow; Tschernyschew, Doklady Akademii Nauk SSSR, 1949, vol. 67, p. 1047
作者:Petrow、Tschernyschew
DOI:——
日期:——
Triton-B catalyzed, efficient one-pot synthesis of carbazates
作者:Devdutt Chaturvedi、Amit K. Chaturvedi、Nisha Mishra、Virendra Mishra
DOI:10.1007/s00706-008-0955-8
日期:2008.12
A quick and efficient, one-pot synthesis of carbazates was accomplished in high yields by the reaction of various primary, secondary, and tertiary alkyl halides with a variety of substituted hydrazines using the benzyltrimethylammonium hydroxide (Triton-B)/CO2 system. The reaction conditions are mild with simpler work-up procedures than the reported methods.
Triton-B catalyzed, efficient one-pot synthesis of dithiocarbazates
A quick and efficient, one-pot synthesis of dithiocarbazates was accomplished in high yields by the reaction of various primary, secondary, and tert. alkyl halides with a variety of substituted hydrazines using the benzyl-trimethylammonium hydroxide (Triton-B)/CS2 system. The reaction conditions are mild with simpler work-up procedures than the reported methods.