Thiazine production

Details Thiazine production Thiazine production

1976-12-17

1978-10-10

Ford, John M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 14, 544 32, 544 34, 544 35, 544 48, 544 50, 542401, 542430, 542469, C07D27914, C07D27916

Patent

active

041197771

ABSTRACT:
A thiazine derivative, which forms a color on contact with an electron accepting material, represented by the formula (II): ##STR1## wherein A.sub.1 and A.sub.2, which may be the same or different, each represents an aryl group or a heterocyclic group and A.sub.1 and A.sub.2 may combine together to form a heterocyclic ring or a fluorene ring, the ring B represents an aromatic hydrocarbon ring or a heterocyclic ring, and Y represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an amino group, an amido group, an oxy group or a thio group, but at least one of A.sub.1 and A.sub.2 or the ring formed by the combination of A.sub.1 and A.sub.2 represents an electron donating aryl group or an electron donating heterocyclic group, and a process for preparing the thiazine derivatives represented by the formula (II) by oxidizing a thioamide derivative represented by the formula (I): ##STR2## wherein A.sub.1, A.sub.2, B and Y are as above described.

REFERENCES:
patent: 3417085 (1968-12-01), Kuch et al.
patent: 3502666 (1970-03-01), Kuch et al.
patent: 3586675 (1971-06-01), Ritchie et al.
Chemical Abstracts, vol. 68, entry 21941(b) 1968.
Chemical Abstracts, vol. 70, entry 87829(u) 1969.

Affiliated with

Also associated with

Rating

Thiazine production does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thiazine production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thiazine production will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1767500