does trioxane sub for paraform in every case?

[El_Zorro]

I've looked through TFSE, and everyone seems to agree that trioxane can be used in place of paraformaldehyde in the NH4Cl+Paraformaldehyde synth for methylamine. I also saw a ref where it was used for chloromethylations.  My question is, does anyone have any actual, real-life success stories using trioxane in either the methylamine synth or a chloromethylation?

[Rhodium]

Trioxane (1,3,5-Trioxymethylene: ) seems to be a perfectly good (para)formaldehyde substitute, among other things as a source od the methylene unit (-CH₂-) in chloromethylation of aromatics.

See the following articles for details:

Kinetic Equation for the Chloromethylation of Benzene with Trioxane and Hydrogen Chloride Using Zinc Chloride as a Catalyst

Ind. Eng. Chem. hod. Res. Dev. 21, 87-93 (1982)

(https://www.thevespiary.org/rhodium/Rhodium/pdf/chloromethylation.benzene-trioxane-zncl2-hcl.pdf)

Chloromethylation of Benzene and Alkylbenzenes with Bis(chloromethyl) Ether, 1,4-Bis(chloromethoxy)butane, 1-Chloro-4-chloromethoxybutane, and Formaldehyde Derivatives

J. Org. Chem., Vol. 41, No. 9, pp. 1627-1631 (1976)

(https://www.thevespiary.org/rhodium/Rhodium/pdf/chloromethylation.methylene-synthon-comparison.pdf)

Trioxane as a Source of Formaldehyde

Ind. Eng. Chem. 39(, 974-977 (1947)

(https://www.thevespiary.org/rhodium/Rhodium/pdf/trioxane-formaldehyde.pdf)

[El_Zorro]

Chloromethylation of Benzene and Alkylbenzenes with Bis(chloromethyl) Ether, 1,4-Bis(chloromethoxy)butane, 1-Chloro-4-chloromethoxybutane, and Formaldehyde Derivatives

So am I correct in thinking that all they did in this ref was do a normal chloromethylation, but use GAA as the solvent, trioxane as the formaldehyde source, and SnCl₄ as the acid catalyst, and then just bubble in HCl as usual?

I like this little idea, considering that trioxane can be had in the form of fuel tablets for about $15US for 3.5kg.