Title:
DI(1,1,3,3-TETRAMETHYLBUTYL)PHOSPHINE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3830986
Kind Code:
B2
Abstract:
PURPOSE: To provide a new compound useful as a metal extractant and an intermediate for industrial raw material and synthesizable in high purity by using a mixed olefin as it is.
CONSTITUTION: This di(1,1,3,3-tetramethylbutyl)phosphine is expressed by the formula. The compound can be produced by reacting 1mol of phosphine with ≥2mol of a trimethylpentene (preferably diisobutylene) in the presence of a catalyst consisting of an alkanesulfonic acid of formula R-SO3H (R is a 1-4C alkyl) (e.g. methanesulfonic acid) and an organic solvent (preferably toluene, n-hexane, etc.) preferably at 60-80°C for 2-10hr. The reaction is carried out e.g. in an autoclave provided with a Teflon(R) inner cylinder at a (phosphine/ trimethylpentene) molar ratio of 1:(2-3).
Inventors:
Tadashi Sugiya
Tsutomu Watanabe
Kaoru Takeuchi
Tsutomu Watanabe
Kaoru Takeuchi
Application Number:
JP7250495A
Publication Date:
October 11, 2006
Filing Date:
March 07, 1995
Export Citation:
Assignee:
Nippon Chemical Industry Co., Ltd.
International Classes:
C07F9/50; B01J31/02; C07F5/02; C07F9/30; C07F9/53; C22B3/06; C22B3/16; C22B3/38; (IPC1-7): C07F9/50
Foreign References:
| US2584112 |
Other References:
Journal of Organic Chemistry,1959年,24(3),p.356-359
ANALYTICAL SCIENCES,1996年,12(6),p.931-934
ANALYTICAL SCIENCES,1996年,12(6),p.931-934
Attorney, Agent or Firm:
Tokuhiro Watanabe
Previous Patent: PROTECTIVE LAYER TRANSFER FILM AND PRINTED MATTER
Next Patent: BIDIRECTIONAL CONTROL APPARATUS FOR CONTROLLING PACKING
Next Patent: BIDIRECTIONAL CONTROL APPARATUS FOR CONTROLLING PACKING