Preparation of E,Z-butenedial bis(dialkyl acetals)

Details Preparation of E,Z-butenedial bis(dialkyl acetals) Preparation of E,Z-butenedial bis(dialkyl acetals)

1993-07-06

1994-08-16

Mars, Howard T.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568603, C07C 4101, C07C 4128, C07C 4150

Patent

active

053388887

ABSTRACT:
An improved process for preparing E,Z-butenedial bis(dialkyl acetals) by reacting the corresponding 2,5-dialkoxy-2,5-dihydrofurans with the corresponding lower alkanols in the presence of an acid at elevated temperature entails carrying out the reaction in the presence of approximately equimolar amounts of a trialkyl orthoformate and in the presence of catalytic amounts of a strong mineral acid or of a strong organic acid.

REFERENCES:
patent: 2799709 (1957-07-01), Isler et al.
patent: 2879278 (1959-03-01), Clauson-Kaas
patent: 4098827 (1978-07-01), Rosenberger
Scheeren et al., Recueil des Travaux Chimiques des Pays-Bas, vol. 94, No. 8, Aug. 1975, pp. 196-198.
Methoden Der Organischen Chemie (Houben-Weyl) Band VI/3, 1965, pp. 221-222.

Affiliated with

Also associated with

Rating

Preparation of E,Z-butenedial bis(dialkyl acetals) does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of E,Z-butenedial bis(dialkyl acetals), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of E,Z-butenedial bis(dialkyl acetals) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-953373