Preparation of benzo[b]thiophenes

Details Preparation of benzo[b]thiophenes Preparation of benzo[b]thiophenes

1993-02-17

1994-03-08

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549 44, 549 48, 549 49, 549 51, 549 57, 549 58, 568433, C07D33354

Patent

active

052928942

ABSTRACT:
A process for the preparation of benzo[b]thiophenes of the general formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 independently denote hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkyl, nitro, cyano, halo, C.sub.1 -C.sub.4 alkylcarbonyl, benzoyl, C.sub.1 -C.sub.4 alkylcarbonylamino, benzoylamino,N-(C.sub.1 -C.sub.4 alkyl)phenylamino, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.1 -C.sub.4 alkylsulfonyl, phenylsulfonyl, aminosulfonyl, aminocarbonyl, C.sub.1 -C.sub.4 phenylalkyl and nitrobenzyl or R.sup.1 +R.sup.2 or R.sup.2 +R.sup.3 or R.sup.3 +R.sup.4 denote a butadienediyl chain optionally substituted by R.sup.1 to R.sup.4, in which

REFERENCES:
patent: 5169961 (1992-12-01), Dickman et al.
A. R. Katritzky et al Adv. Heterocyclic Chemistry, 11, 206-239 (1970).
B. D. Tilak, Proc. Indian Academy of Sciences: 32A, 390-395 (1950).
Collin et al Ullmann's Encyclopedia D. Tech Chem. vol. 23, pp. 217-225, 4th Edition (1982).
O. DeLucchi, et al. J. Chem Soc, Chem: Commun., pp. 513-514 (1984).
T. Greene, "Protective Groups in Organic Synthesis", pp. 114-121 John Wiley & Sons, New York (1981).

Affiliated with

Also associated with

Rating

Preparation of benzo[b]thiophenes 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 benzo[b]thiophenes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of benzo[b]thiophenes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-154781